You can increase the final gear ratio as much as you want. But the power in a pair of human legs i.e. a cyclist, remains the same. (higher gearing requires more power to push the pedals). So it doesn't make you cycle any faster if you're not on a smooth downhill and you have gravity to assist you. Then nevermind going uphill ..... you can forget about that. Get off your bike and push it while you walk.😁
@@brianmeow Have you ever heard of a pro cyclist that has a contraption like this? No? Well there is a reason why they don't use these. You can't climb with them, they are for smooth DH only.
Teóricamente es todo posible. sin embargo, actualmente las relaciones de engranes para ruta comercialmente está 53/11 es 4.81 , hasta 60/11 es 5.45 con esta última relación superas los 40km promedio. Así que trabajamos con la relación 28/14 x 52/14 llegaríamos a 7.42 teóricamente, sin embargo la cadencia sería lo quizá uno no pueda sostener el rpm . Es un buen multiplicador de velocidad pero no practico para el cuerpo humano.
@@ScreamingEagleFTW The problem is that fast twitch dominant cyclists are actually good at... higher rpm. I know cycling world jumped on slow twitch = higher cadence bandwagon long time ago but recent studies show it's more complicated than that at best. Speed of contraction does matter. Athletes with higher percentage of fast twitch fibers are better predisposed to higher pedaling rates. So I'd say this crank would be good for an athlete with A LOT of slow twitch fibers which sheer amount allows for higher torque.
we already know that fast twitch fibers create more force, more limit strength, more tension but for shorter durations. Red fibers are for endurance, sub maximal contractions over and over. Only one way to find out. At least we agree that starting out at a full stop in a high gear the advantage would go to the fast twitch guy if acceleration was the goal. @@michwoz
@@ScreamingEagleFTW Of course. Although you don't need that much force while pedaling in most scenarios (even at higher intensities), during sprinting or at very low cadence coupled with high power, high rate of force development is required which only fast twitch fibers can provide.
_"Fun fact: gear ratio is not a limiter of bicycle performance."_ More fun fact: bicycle performance is limited to air resistance and gravity. Even more fun fact: larger sprockets cannot overcome air resistance and gravity.
Useful for the bros who don't skip leg day! (~‾▿‾)~ Edit : on another note, modding it with a 250W rear hub motor and a controller in a pedalec configuration might help those who skip leg day as well
Increasing the gear ratio definitely gives you potential for more speed. But you’re still putting in the same power with your legs. You’re not gaining any mechanical advantage by doing this.
In fact he makes the bike worse, because more moving parts meant more rotational mass which means more watts lost in process. Basically this reduced efficiency of the drivetrain.
Может, я что-то не понял, но в чём смысл? Число зубьев задней и дополнительной звезды одинаковое. Т.е. передаточное число 1:1. Соответственно, эффекта не будет. Только потеряем на трении. Да и смысла в этом нет, т.к. большинство людей не способно крутить педали с нужной частотой (80+ оборотов в минуту) с передаточным числом 3 и больше. Тут уже нужен электромотор.
Похоже, не понял. С большой (допустим, 48T) звезды цепь передаёт училие на малую дополнительную звезду (14T), оттуда передаётся по валу на большую дополнительную звезду (34T), оттуда - на заднюю (14T). Итого имеем: 48:14 * 34:14 = 3.4 * 2.4 = 8.2. Если взять самую большую звезду на рынке (59T) и самую малеькую (9T), всё равно получите только 6.6. Другой вопрос - это нагрузка. Для развития полной скорости надо буквально приседать всем телом на каждой педали. Это ведёт к лютейшему износу первой цепи и малой дополнительной звезды, а также оказывает сильное давление на ось дополнительной звезды. Скорее всего, конструкция с такими длинными рычагами дополнительной звезды не выдержит долго давления и просто изогнётся, так что долго поддерживать высокую скорость попросту не получится.
@@Ревизорспроверкой Смысл в таком изобретении "не часто крутить" только в том, чтобы за тобой ездила машина и в горку везла. А так, дополнительное трение, больше веса на доп.цепи и звезде. Лучше уж нормальные звезды подобрать, ну может чаще крутить нужно с горы, зато универсально, легче, меньше трения и т.д. Короче, Тур де Франс на этом шайтане точно никто не выиграет...
@@Monkits1tvp он и в горку поедет(хотя в иную горку легче пешком идти) благо есть переключатель и пакет звезд.Доп.вес и трение не так уж велики, нивелируется весом пользователя и его физ.подготовкой.
@@Ревизорспроверкой В горку даже я на своем полутонном норняке могу поехать, но дело в другом. Лишние 300грам звезда и цепь, а толку практически ноль. Легче чуть быстрей крутить вниз, чем чувствовать даже эти лишние 300г в гору. И эти факторы никак не нивелируются, ни для профиков ни для казуалов, поэтому не придумывай из головы, доп вес велосипеда ничто не нивелирует, если тебя не 90кг,и эти кг будут не мышцы.
How refreshing it is to see somebody who makes TH-cam videos who actually knows how to weld a bead rather than just multiple tacking / sloppy spot-welding. Great Job 🎉 (especially compared to everyone else I see on these videos)
On the other hand, the idea of simply creating a faster bike by gearing lacks knowledge of the available power and wind resistance. Doesn't it seem logical that faster bikes would already have been invented and widely available if it was that simple?
@@cpmorgan5000 I am completely logical. Unless you can override the laws of physics, you can add all the gears you want. A TDF cyclist delivers, on average, somewhere between 220 and 240 W on a regular stage, and that must be said to be the top of what can be delivered. We are therefore talking about a force which, for car experts, corresponds to 1/3 HP. In addition, you have a wind resistance that increases exponentially with the speed. It's great to experiment and try new ways, but the laws of physics are what they are. The bicycle is an old invention that has been refined for centuries and a modern racing bicycle has almost no transmission resistance. But what little resistance there is after all becomes twice as great by adding twice as many gears.
@@cpmorgan5000 It's a bit embarrassing that I didn't catch it, but English is not my native language and I am sometimes provoked by "fantatic" free energy inventions. But I'm glad you didn't have to be taken literally ;-)
The "laboratory" conditions presented here do not account for rolling resistance and wind resistsnce. Your top speed will be no faster on flat, level ground than regular gears, assuming regular gears are already geared higher than the rider's strength. If it did work, I could gear my car to go 1000 MPH by just putting in high enough gears.
А в чем смысл???? Он еле крутит = большая нагрузка на суставы + они хуже смазываються. Уж лучше 80-150оборотов в минуту крутить педали на 52х11 передаточном соотношении, чем это крутить 10-15 оборотов в минуту.
Congrats you've made it faster and didnt mention any other factors so i support it, dont listen to the bitchy more popular comments missing the point of the video.
I like electric bikes. They have serious acceleration. I was out biking and I saw a woman on an electric bike. I have to admit it was pretty cool to see her take off.
Yes, less drag from the chain on sprockets and less weight. Its pointless unless everywhere you ride is downhill though because you can only gear a bike up so much before its too hard to pedal. The builder is faking the speeds by using downhills to appear fast. As big a bullshit line as all those free energy electric motors videos.
You could get into ground clearance issues with a huge chainring, so for a MTB something like this would be better. and you wouldn't realistically need that big tho, you can buy a 70t chainring off the shelf and fit it with a 9t rear cog and I don't think anyone would be able to pedal that up to even a steady 90 cadence. It would need a huge downhill atleast. If you really wanna fly pair that up with a internal gear hub and you'll be going 90kph at 60 cadence.
Of course it doesnt, also the better way would be changing the cassette to the 12 speed one that has the smaller gear with 10, not 13 or 14 teeth like this one.
Pues parece que funciona bien. Es como duplicar la transmisión. Sigue trabajando en la idea, podría revolucionar el ciclismo. Hay que verlo en subidas.
En subidas lo unico que tiene que hacer es equilibrar los dientes de cada crankset. Es Claro que es una bicicleta del alta velocidad y no seria practica para velocidad cambiante en una ciudad. Pero sin duda sera una maravilla para gente que vive entre pueblos cercanos
@@Виталийсамодельщик можно делать гибриды но это уже другая тема. Здесь использована не отключаемая дополнительная раздатка, создающая только проблемы. Вопрос еще и в безопасности - падать на скорости 60км на велике, а всё может быть, эко как?
Really cool! you seem to know your tools. I live in a fairly flat city and I spend most of the time in the highest gear ratio, I've always wondered how would be to have an extremely high gear ratio like that and this design is way more compact that just adding a huge gear. Also I would try to add an electric motor to that bike.
A time trial bike already has a higher gear ratio than that in the video. They can go 80kph and more whereas this showed a top speed of 70. You only need a big chainring, like 56 teeth
Super cool on a bike stand inside the house. Now sit on it and ride 50 km at 50+ km/h. Even on a road without climbs. In other words: as useless as it can be.
It takes the same amount of power to attain the same speed, but the difference is that you apply more force more slowly. Thus, your legs make fewer cycles to get the same distance. This is great for the people with overpowered legs, but not so great for everybody else.
Easy to turn the crankset when the bike is on flat road, but with a few D+ you will need to buy new legs. With 54-10 it will be already very difficult to crush the pedals
Me encanta, la idea es como la dinámica de incrementar la fuerza o esfuerzo físico auxiliado de la ingeniería de los piñones, así como los cambios. Muy bien pensado. Definitivamente hay mucho que mejorar e inventar. Mil felicidades chicos por este gran aporte será toda una revolución en las bicicletas. Mejor dicho la vuelta Colombia nos quedó pendeja.😄. 👍🇨🇴🙏.
No me digas señor obvio, en serio la relacion sera mas dura??? waooo quien lo diria... Porque los que hablan español siempre comentan ese tipo de tonterias?, no te vas a cansar mas, incluso te cansaras menos, porque lo que cansa no es hacer fuerza, es tener que pedalear muuuucho, eso es lo que cansa, cuando tenes que meter 100 pedales por minuto para poder llegar a 45km/h, te cansas mucho mas que si tuvieras que solo dar 20 pedales por minuto para llegar a los 45/h, aunque tengas que meterle un poco mas de fuerza, eso no es nada, lo importante es no tener que dar tanto pedaleo. Te lo digo por exp propia, yo anduve por mucho tiempo con un cambio muy liviano, hasta que me canse de ir tan lento a coste de tantos pedaleos, un dia me tope con unos ciclistas que me sobrepasaban por mucho en velocidad sin sudar una gota, me preguntaba como eran capaces de ir tan rapido pedaleando tan despacio y sin cansarse, hasta que descubri que era porque tenian un cambio mas pesado, asi que fui a que me le pongan un cambio mas pesado a mi bici (48 dientes plato con el piñon mas pequeño de 11 dientes) y ahora ando super rapido sin cansarme, con apenas dar un par de pedales voy rapidismo, ya ni me canso para ir a cualquier lugar. Aumentar la fuerza siempre es la mejor via en la bici.
Ребят... вы извините, конечно..... Но вы те еще "инженеры". Разогнали велик до сотки? Получилось? Неужели вы не понимали, что просто крутить колесо на перевернутом велике, и ехать на нем - не одно и то же? И что от изменения числа зубьев скорость не вырастет? Так это не все. Еще и коленные суставы у вас на нем подохнут. Вы хоть спрашивайте сначала у тех, кто катает, есть ли смысл что то делать, или нет....
Puedes poner todos los engranajes intermedios que quieras.... la fuerza necesaria para moverlo será cada vez más... pues a más cadenas y peso, hace falta más fuerza para vencer la resistencia y el peso.
waoo en serio??? no me digas.... obviamente necesitara mas fuerza, el chiste aca es que la fuerza es muy facil de conseguir, solo es entrenar un poco y listo te acostumbras al poco tiempo a manejar ese cambio, lo dificil es tratar de superar los 40 km/h con un plato de 38 dientecitos, tendrias que dar 100 pedaleadas por segundo para llegar a pasar la barrera de los 40 km, perooooo, con un plato de 60 dientes por ejemplo, podrias alcanzar facilmente incluso los 50 km/h con solo dar 50 pedaleadas por minuto, al final la cadencia es mucho mas dificil de conseguir que la fuerza, por eso es mejor añadir mas fuerza a la bici, que cadencia a la hora de mejorar la velocidad.
@@dss12345678más o menos, tendrías que ser un ciclista de pista para entrenar correctamente ratios así de altos, es posible pero igual en pista normalmente se maneja más rpm que potencia, porque no importa que puedas mover 14/68 si no tenes las rpm para llevarlo a altas velocidades
I was really hoping to see him on the freeway going down a steep downhill section road just flat out giving it hell, all he's got to see the max speed he could do.
Super smart idea. For someone with strong legs, thats so cool and handy. Force to push hasnt been the issue personally but high rpms like any motor(human capability), there is a limit
Lol, ifyou cannot peddle at the rpm of 60-90 then it is time to see a doctor. This gearing is insanely pointless. Average commuter cyclist is able to peddle at the 70rpm. 70rpm on this bike is more than 100kmh, how the hell are you going to acclerate to the 100kmh on a such high hear? the lowest gear at 60rpm makes you go 30kmh. And the peak power of human legs on a bicycle is at around 100rpm.
@@DoomNerd67200 _"You indeed need alot of leg watts"_ the one problem is you are limited to the amount of torque produced by your own body weight. Any more torque than your own body weight would be lifting you off the saddle instead of pushing you forward. Well, that is unless someone installed a seatbelt.
Bikes used to have a front derailleur for multiple sized cranks. I hate that this went away. Regardless, the most effective way to increase speed while reducing the amount of force needed at the pedal would be a pulley system.
no many bikes still come with front derailleur. they've just fallen out of favor cause there mostly useless, in regards to the number of gears you'll actually need or use whil out on the road. the advantage of a front derailleur is not to get 21 speeds but to have a down shift to a smaller gear which is handy and smoother when going up the hill. where changing to a bigger gear on the back to downshift is more clunky when your required cadance is hard to maintain. with most e-bikes and a lot being hub driven its actually better just to have a small gear ratio where its easy to pedal to get started and a high one to switch into when your moving along nicely as you don't need much else.
Thanks @Plaxy100, I've been out of mtb since Sram just started introducing the XX & X1. Now back in with post-divorce budget (~$0), I'll eventually get to upper level cranksets. For now, the frisbee-sized ninja stars appearing on the granny side of 12 speed cassettes make me wonder how close these ratios still are. My Southwest US racing commonly involved >1 hour climbs at over 10,000 ft. I needed to keep the granny gears close together as I have a very rapid narrow-range climbing cadence. I just don't see how the fine tuning can remain for the most demanding XC riding when you reduce all prior solutions to a 12 speed. Thoughts? (I know, I know, I can plug the numbers into a spreadsheet to get all the ratios, but I suspect that on-the-trail may feel different than on paper.)
@@Aphorism89 Higher top speed is another reason for it. The tiny single cranks that come on bikes today suck ass for everything except coasting downhill.
@@Inmate533 luckily they are easy to replace and relatively inexpensive. I mean, one can eventually take them out and buy too quality ones instead. I wouldn't mind having 2 plates, used to have that on my road bike and it was great. But now a days I'd always try to minimize. The least elements, the least maintenance and risks :/
Sebenarnya inti dari itu adalah semakin panjang jarak poros roda belakang dengan poros engkol maka semakin besar daya yang dihasilkan. Itu bisa dilakukan dengan cara lebih simple yaitu dengan arm axtension. Tapi jadinya memang jarak poros roda belakang dan poros roda depan jadi besar. Efeknya kurang lincah bermanuver.
La idea esta super buena, pero me gustaria mirar que tan rapido puede ir en una pendiente hacia arriba, espero no pese micho la bicicleta porque tendra que empujarla o cargarla.
Não vi vantagem nesse projeto não, só da pra usa a marcha traseira!! E sem falar que solda a catraca não é o ideal, o melhor é ter feito algo que pudesse ser trocado quando desse problema!!!
Главная проблема в сопротивлении воздуха! Надо собирать обтекаемый корпус, лежачее положение велосипедиста, тогда можно развить скорось и до 100 км/ч. На велотреках спортсмены развивают до 90 км/ч. но это без встречного ветра и нужны тренировки и специальный велосипед.
@@akisalmenaho8473 But both ways would end without having a video ;-) I'm pretty sure the video was the only intention for thos build, the bike will be pretty useless with that high gear ratio.
This system is quite ingenious. It could work with a mid-drive electric bike. The motor could be attached to the first freewheel. By able to use a small front chain ring and a large rear cog, this ebike could have insane high torque for climbing steep hill.
It would also need an insanely heavy motor drawing insane amounts of power in order to get that high torque. You would get up maybe one hill before needing a recharge.
I'm running a mid drive 750w Bafang bike now, the torque using standard mtb ratios is enough to climb any hill easily. There is no point in this system with a mid motor bike, especially as I'm getting 59kph easily as is.
@@GB-vn1tf I'm going to be trying this anyway I have a couple of electric bikes with rear hub drives I've been looking for a really large front gear so I could pedal at high speeds I'm going to go ahead and try this anyway and I'll let you guys know how it works out
Reminds me of the CVT transmission set up in the nissan. The configuration of the chain and gear ratio. Very cool. If you make it a electric bike no telling how fast it will go. That could be kind of scary though if you wreck.
No need to do that though, just put on a bigger front chain ring and you have the same result. My Bafang powered bike hits 59kph with normal mtb gearing as it is.
No telling, you actually could tell very easily with the right bits of info. A standard bike gear ratio spinning at 100 revolutions per minute in a 52 12 chain ring cassette combo would yield a speed of around 65 mph. Plenty fast. Also if it's a crap bike and/or aluminum frame that's when stuff start vibrating off and breaking. Unnecessary and esthetically makes me want to vomit and my eyes want to commit suicide.
Just get bigger chainring (front gear) and smallest sprocket (rear gear) but you gonna need a more powerfull leg to pedal because its so heavy to pedaling 🤣
Seia bueno que el autor del vídeo nos contará sobre sus impresiones con este sistema como realmente se siente y si es bueno para subir colinas o solo es para terreno plano
@@benjazz8128 pues no sabría determinar eso por el tipo de relación que maneja pues el plato delantero es pequeño y si el cambio trasero sube al plato mas grande se supone que debe quedar un cambio suave para subir terrenos con pendientes, por eso le pido el favor al autor del video si puede explicarnos.
You can increase the final gear ratio as much as you want. But the power in a pair of human legs i.e. a cyclist, remains the same. (higher gearing requires more power to push the pedals). So it doesn't make you cycle any faster if you're not on a smooth downhill and you have gravity to assist you. Then nevermind going uphill ..... you can forget about that. Get off your bike and push it while you walk.😁
Yep, thats why it is pointless.
ever heard of a pro cyclist?a climber?a comuter?a gravel biker?
agreed, when comparing the revolutions/s from the start of the video with the end of the video, he probably just had a speed of 20km/h
@@brianmeow Have you ever heard of a pro cyclist that has a contraption like this? No? Well there is a reason why they don't use these. You can't climb with them, they are for smooth DH only.
My friend. Is for efficiency . I Hope you understand . Thanks you
раскрутить колесо до 70+км в ч, можно и без этой приблуды, хорошо бы посмотреть как он эти 70 выжмет сидя на велосипеде, хотя бы по прямой.
everything starts from the legs, you don't have strong legs, the invention has no value😂😂😂
Well maybe then change the chainring ro something a bit smaller like 38 t 34 t or something
@@freshmentosxxxx1709xxxx it just made the bike heavier, it didn't do anything else
@@alexsarpele6477 oh ok
Yup only super fast if you can super pedal it.
But You run faste
I don't think it makes much sense. power and speed are related, above a certain limit you simply don't have the power to pedal
А теперь в гору и против ветра... Вот тут, думаю, все преимущества сойдут на нет.
Ты главное этому изобретателю не говори. Пусть сам всё узнает ))))
может он не знает есть педали с тремя звездами . тот же хрен только легче
Это чтобы за автобус цепляться, а не в горку ездить.
Dove abita lui non ci sono salite tipo n3l deserto??😂😂😂😂😂😂😂😮
Teóricamente es todo posible. sin embargo, actualmente las relaciones de engranes para ruta comercialmente está 53/11 es 4.81 , hasta 60/11 es 5.45 con esta última relación superas los 40km promedio. Así que trabajamos con la relación 28/14 x 52/14 llegaríamos a 7.42 teóricamente, sin embargo la cadencia sería lo quizá uno no pueda sostener el rpm . Es un buen multiplicador de velocidad pero no practico para el cuerpo humano.
Ако трябваше, щяха в завода да му монтират тези предавки.
Versteht kein Mensch
Podrá dar más detalles o tendrá un video guía para mantener el par esfuerzo para mantener la velocidad por promedio 30 km/h
La deal este foarte nepractic
Is it possible to go faster in this case?
Regardless of gear combinations to increase speed, your speed will still depend on human power input.
I think he tried to increase his torque?
@@jipjipson8744 nahhh, just "add a gear to make higherst possible RPM for a wheel"
Es buena idea amigo tu obra. 👍🇲🇽
Dude giving he's weak legs more work.its all in the legs
Very interesting as for a unique crazy build. But I don't understand how this clumsy rig would increase speed or perfoemace.😉
by adding a four stroke engine.. lol
thaats heavier than changing bigger chainring, more wearing parts too
Fun fact: gear ratio is not a limiter of bicycle performance.
depends on the rider and what rpm the riders power band is. this would be perfect for a fast twitch person. ie anaerobic athletes.
@@ScreamingEagleFTW The problem is that fast twitch dominant cyclists are actually good at... higher rpm. I know cycling world jumped on slow twitch = higher cadence bandwagon long time ago but recent studies show it's more complicated than that at best. Speed of contraction does matter. Athletes with higher percentage of fast twitch fibers are better predisposed to higher pedaling rates. So I'd say this crank would be good for an athlete with A LOT of slow twitch fibers which sheer amount allows for higher torque.
we already know that fast twitch fibers create more force, more limit strength, more tension but for shorter durations. Red fibers are for endurance, sub maximal contractions over and over. Only one way to find out. At least we agree that starting out at a full stop in a high gear the advantage would go to the fast twitch guy if acceleration was the goal. @@michwoz
@@ScreamingEagleFTW Of course. Although you don't need that much force while pedaling in most scenarios (even at higher intensities), during sprinting or at very low cadence coupled with high power, high rate of force development is required which only fast twitch fibers can provide.
_"Fun fact: gear ratio is not a limiter of bicycle performance."_ More fun fact: bicycle performance is limited to air resistance and gravity. Even more fun fact: larger sprockets cannot overcome air resistance and gravity.
Leaving those freaking ball bearings angers the shit out of me
The limiting factor are the legs. I don’t see any advantage compared to a conventional system with two or three gears at the front.
Topp Idee! Nur für Leistungssportler?
FYI, there are already “multiple chain rings” in the market. Even your invention makes more friction because of the additional chains.
Yea, it is pointless.
@@jurekgadzinowski2895 it's more like making a Video for YT.
Say hello to your knee joints
Still the same as normal set up, human power is still needed...
well it is a bike lmao
Я на электро велосипеде 55 выжимаю еле-еле киловаттный мотор. А тут просто на 11 маршруте 😂😂😂😂 за 50
Useful for the bros who don't skip leg day! (~‾▿‾)~
Edit : on another note, modding it with a 250W rear hub motor and a controller in a pedalec configuration might help those who skip leg day as well
There is no free energy base on physics means you need more stronger legs for that speed.
Increasing the gear ratio definitely gives you potential for more speed. But you’re still putting in the same power with your legs. You’re not gaining any mechanical advantage by doing this.
In fact he makes the bike worse, because more moving parts meant more rotational mass which means more watts lost in process.
Basically this reduced efficiency of the drivetrain.
lower tempo means more achievable ride for most for longer, stop hating
@@littlehills739 lol how tf am I hating? I’m giving constructive criticism. Stop being a baby getting offended by everything.
@@PP-cm4re constructive criticism? what was the constructive part?
Lower cadence on flat improves cycling comfort. Higher tooth front crank does same.
Ideia otima, projeto bom , quem estar criticando ,não tem boas intenções para ajudar .
Может, я что-то не понял, но в чём смысл? Число зубьев задней и дополнительной звезды одинаковое. Т.е. передаточное число 1:1. Соответственно, эффекта не будет. Только потеряем на трении.
Да и смысла в этом нет, т.к. большинство людей не способно крутить педали с нужной частотой (80+ оборотов в минуту) с передаточным числом 3 и больше. Тут уже нужен электромотор.
смысл в том, что можно развить скорость 70 км в час с горки.Крутя при этом педали с частотой как 0:16.То есть не особо часто.
Похоже, не понял. С большой (допустим, 48T) звезды цепь передаёт училие на малую дополнительную звезду (14T), оттуда передаётся по валу на большую дополнительную звезду (34T), оттуда - на заднюю (14T). Итого имеем: 48:14 * 34:14 = 3.4 * 2.4 = 8.2. Если взять самую большую звезду на рынке (59T) и самую малеькую (9T), всё равно получите только 6.6.
Другой вопрос - это нагрузка. Для развития полной скорости надо буквально приседать всем телом на каждой педали. Это ведёт к лютейшему износу первой цепи и малой дополнительной звезды, а также оказывает сильное давление на ось дополнительной звезды. Скорее всего, конструкция с такими длинными рычагами дополнительной звезды не выдержит долго давления и просто изогнётся, так что долго поддерживать высокую скорость попросту не получится.
@@Ревизорспроверкой Смысл в таком изобретении "не часто крутить" только в том, чтобы за тобой ездила машина и в горку везла.
А так, дополнительное трение, больше веса на доп.цепи и звезде.
Лучше уж нормальные звезды подобрать, ну может чаще крутить нужно с горы, зато универсально, легче, меньше трения и т.д.
Короче, Тур де Франс на этом шайтане точно никто не выиграет...
@@Monkits1tvp он и в горку поедет(хотя в иную горку легче пешком идти) благо есть переключатель и пакет звезд.Доп.вес и трение не так уж велики, нивелируется весом пользователя и его физ.подготовкой.
@@Ревизорспроверкой В горку даже я на своем полутонном норняке могу поехать, но дело в другом.
Лишние 300грам звезда и цепь, а толку практически ноль. Легче чуть быстрей крутить вниз, чем чувствовать даже эти лишние 300г в гору. И эти факторы никак не нивелируются, ни для профиков ни для казуалов, поэтому не придумывай из головы, доп вес велосипеда ничто не нивелирует, если тебя не 90кг,и эти кг будут не мышцы.
A super-fast bike for riding the wrong way is just what we need
How refreshing it is to see somebody who makes TH-cam videos who actually knows how to weld a bead rather than just multiple tacking / sloppy spot-welding.
Great Job 🎉
(especially compared to everyone else I see on these videos)
On the other hand, the idea of simply creating a faster bike by gearing lacks knowledge of the available power and wind resistance. Doesn't it seem logical that faster bikes would already have been invented and widely available if it was that simple?
No, you're illogical - this bike has four gears working simultaneously, this has not been done before@@TheKIMANO
@@cpmorgan5000 I am completely logical. Unless you can override the laws of physics, you can add all the gears you want. A TDF cyclist delivers, on average, somewhere between 220 and 240 W on a regular stage, and that must be said to be the top of what can be delivered. We are therefore talking about a force which, for car experts, corresponds to 1/3 HP. In addition, you have a wind resistance that increases exponentially with the speed. It's great to experiment and try new ways, but the laws of physics are what they are. The bicycle is an old invention that has been refined for centuries and a modern racing bicycle has almost no transmission resistance. But what little resistance there is after all becomes twice as great by adding twice as many gears.
@@TheKIMANO I was just playing
@@cpmorgan5000 It's a bit embarrassing that I didn't catch it, but English is not my native language and I am sometimes provoked by "fantatic" free energy inventions. But I'm glad you didn't have to be taken literally ;-)
This is a great video, I'm considering this for a fixed gear set-up.
Thanks for this...
The "laboratory" conditions presented here do not account for rolling resistance and wind resistsnce. Your top speed will be no faster on flat, level ground than regular gears, assuming regular gears are already geared higher than the rider's strength. If it did work, I could gear my car to go 1000 MPH by just putting in high enough gears.
Very nice I will try it
Love the precision welding, and it goes like a cut snake. I saw you passing two or three buses!
Going In the wrong directooon
he passed them like they were standing still.
😂😂😂😂😂😂
А в чем смысл????
Он еле крутит = большая нагрузка на суставы + они хуже смазываються.
Уж лучше 80-150оборотов в минуту крутить педали на 52х11 передаточном соотношении, чем это крутить 10-15 оборотов в минуту.
There are bright minds in every country but they're even brighter when they make it happen.
so bright, this were done in like 1950s or even earlier, lol
😂😂😂😂
Congrats you've made it faster and didnt mention any other factors so i support it, dont listen to the bitchy more popular comments missing the point of the video.
Nice brother ❤️
We are the manufacturer for High end E-Bikes in China.
Very good video and thank you for sharing your idea 😁😁👍
I like electric bikes. They have serious acceleration. I was out biking and I saw a woman on an electric bike. I have to admit it was pretty cool to see her take off.
Doesn't a bigger sprocket in the front accomplish the same thing with out all the extra stuff?
Yes, less drag from the chain on sprockets and less weight. Its pointless unless everywhere you ride is downhill though because you can only gear a bike up so much before its too hard to pedal. The builder is faking the speeds by using downhills to appear fast. As big a bullshit line as all those free energy electric motors videos.
Next janretion tecnology
Nice 👍 waw
Question is, does it weight less than a 80 or 90T front chainring+chain links?
And the increased complexity equals more prone to failure.
I'll take gear reduction
You could get into ground clearance issues with a huge chainring, so for a MTB something like this would be better.
and you wouldn't realistically need that big tho, you can buy a 70t chainring off the shelf and fit it with a 9t rear cog and I don't think anyone would be able to pedal that up to even a steady 90 cadence. It would need a huge downhill atleast. If you really wanna fly pair that up with a internal gear hub and you'll be going 90kph at 60 cadence.
It adds little relative complexity
Of course it doesnt, also the better way would be changing the cassette to the 12 speed one that has the smaller gear with 10, not 13 or 14 teeth like this one.
great invention...this is serious invention...it's gonna super fast.
Pues parece que funciona bien. Es como duplicar la transmisión. Sigue trabajando en la idea, podría revolucionar el ciclismo. Hay que verlo en subidas.
En subidas lo unico que tiene que hacer es equilibrar los dientes de cada crankset. Es Claro que es una bicicleta del alta velocidad y no seria practica para velocidad cambiante en una ciudad. Pero sin duda sera una maravilla para gente que vive entre pueblos cercanos
Changing transmission ratio - Big whop...
Respekt for anyone that actually is able to use this!
З горки за ветром покатит, а что делать на подъеме? Законы физики никто не отменял.
Нужно делать электробайк с педалями, гоняй на электро тяге, потом крути педали как сядет аккум.
@@Виталийсамодельщик можно делать гибриды но это уже другая тема. Здесь использована не отключаемая дополнительная раздатка, создающая только проблемы. Вопрос еще и в безопасности - падать на скорости 60км на велике, а всё может быть, эко как?
Esta genial el dispositivo de engranaje,fácil de instalar y conseguir..
Really cool! you seem to know your tools. I live in a fairly flat city and I spend most of the time in the highest gear ratio, I've always wondered how would be to have an extremely high gear ratio like that and this design is way more compact that just adding a huge gear. Also I would try to add an electric motor to that bike.
A time trial bike already has a higher gear ratio than that in the video. They can go 80kph and more whereas this showed a top speed of 70.
You only need a big chainring, like 56 teeth
Its not more compact. Its heavier and less efficient. And it looks ugly. A big chain ring is beautiful. Just get a bigger ring.
390km 😂
Super cool on a bike stand inside the house.
Now sit on it and ride 50 km at 50+ km/h. Even on a road without climbs.
In other words: as useless as it can be.
I watched the video impressively.
The new concept is fast, but doesn't it take more power?
Of course yess
You you seriously asking if it takes more power to ride faster?
Yes, because of physics. The footage in the end is fake/sped up.
@Alex it's not fake, its downhill
It takes the same amount of power to attain the same speed, but the difference is that you apply more force more slowly. Thus, your legs make fewer cycles to get the same distance. This is great for the people with overpowered legs, but not so great for everybody else.
you guys are correct, still defending on human straight and stamina however, compare to regulan gearing this would be more effective i think
Easy to turn the crankset when the bike is on flat road, but with a few D+ you will need to buy new legs. With 54-10 it will be already very difficult to crush the pedals
Even on a flat road, you will not get much speed out of it without a fairing or some other method to improve the aerodynamics.
60+km/h THAT'S what i like to see
Com pneu fino, minha bick ja passou dos 70km/h, várias vezes. Não consegui entender a vantagem dessa experiência. Mas deu vontade de testar 😉
concordo
How much speed is possible with such a system? I hope there are people who can answer?
Me encanta, la idea es como la dinámica de incrementar la fuerza o esfuerzo físico auxiliado de la ingeniería de los piñones, así como los cambios.
Muy bien pensado.
Definitivamente hay mucho que mejorar e inventar.
Mil felicidades chicos por este gran aporte será toda una revolución en las bicicletas. Mejor dicho la vuelta Colombia nos quedó pendeja.😄.
👍🇨🇴🙏.
It’s a crank on steroids,love this idea
Belo projeto! Agora falta botar um freio ABS pra segurar isso daí hein 😁
😁😁😁😁😁
فكرة بسيطة وعملية جدآ ...استمر يا بطل
Mais peso e manutenção mas deve ser boa para acelerar na descida.
Impossibly high-geared unless you're into 100 mph downhill runs.
La relación es más dura .para pedaliar te cansas más . Desarrolla más velocidad pero pedales más duros... Exelente ideas!!!
No me digas señor obvio, en serio la relacion sera mas dura??? waooo quien lo diria...
Porque los que hablan español siempre comentan ese tipo de tonterias?, no te vas a cansar mas, incluso te cansaras menos, porque lo que cansa no es hacer fuerza, es tener que pedalear muuuucho, eso es lo que cansa, cuando tenes que meter 100 pedales por minuto para poder llegar a 45km/h, te cansas mucho mas que si tuvieras que solo dar 20 pedales por minuto para llegar a los 45/h, aunque tengas que meterle un poco mas de fuerza, eso no es nada, lo importante es no tener que dar tanto pedaleo.
Te lo digo por exp propia, yo anduve por mucho tiempo con un cambio muy liviano, hasta que me canse de ir tan lento a coste de tantos pedaleos, un dia me tope con unos ciclistas que me sobrepasaban por mucho en velocidad sin sudar una gota, me preguntaba como eran capaces de ir tan rapido pedaleando tan despacio y sin cansarse, hasta que descubri que era porque tenian un cambio mas pesado, asi que fui a que me le pongan un cambio mas pesado a mi bici (48 dientes plato con el piñon mas pequeño de 11 dientes) y ahora ando super rapido sin cansarme, con apenas dar un par de pedales voy rapidismo, ya ni me canso para ir a cualquier lugar. Aumentar la fuerza siempre es la mejor via en la bici.
Mejor vario y con p inercial 😂
Those legs gone be jacked!! If they are not jacked. 😂 better not skip leg day!
Ребят... вы извините, конечно..... Но вы те еще "инженеры". Разогнали велик до сотки? Получилось? Неужели вы не понимали, что просто крутить колесо на перевернутом велике, и ехать на нем - не одно и то же? И что от изменения числа зубьев скорость не вырастет? Так это не все. Еще и коленные суставы у вас на нем подохнут. Вы хоть спрашивайте сначала у тех, кто катает, есть ли смысл что то делать, или нет....
Puedes poner todos los engranajes intermedios que quieras.... la fuerza necesaria para moverlo será cada vez más... pues a más cadenas y peso, hace falta más fuerza para vencer la resistencia y el peso.
waoo en serio??? no me digas.... obviamente necesitara mas fuerza, el chiste aca es que la fuerza es muy facil de conseguir, solo es entrenar un poco y listo te acostumbras al poco tiempo a manejar ese cambio, lo dificil es tratar de superar los 40 km/h con un plato de 38 dientecitos, tendrias que dar 100 pedaleadas por segundo para llegar a pasar la barrera de los 40 km, perooooo, con un plato de 60 dientes por ejemplo, podrias alcanzar facilmente incluso los 50 km/h con solo dar 50 pedaleadas por minuto, al final la cadencia es mucho mas dificil de conseguir que la fuerza, por eso es mejor añadir mas fuerza a la bici, que cadencia a la hora de mejorar la velocidad.
@@benjamingomez4040 estás hablando en serio? No, verdad? No has montado en bici en tu vida.
@@benjamingomez4040 El amigo es de los que cambia las llantas para que el carro vaya mas rapido.
@@dss12345678más o menos, tendrías que ser un ciclista de pista para entrenar correctamente ratios así de altos, es posible pero igual en pista normalmente se maneja más rpm que potencia, porque no importa que puedas mover 14/68 si no tenes las rpm para llevarlo a altas velocidades
Не свернешь
I was really hoping to see him on the freeway going down a steep downhill section road just flat out giving it hell, all he's got to see the max speed he could do.
Parabéns pelo video,eu gostei,você é um artista e muito inteligente!Deu te abençoe
Sacrifice the chain line for higher gears, very nice
Ты просто не сможешь разогнаться. Всё это бесполезно!
Если только с горки с попутным ветром.
No
Разве что под гору
Esto es un proyecto por diversión. No una innovación
Kinda cool if you are always in the top gear and it's just not tall enough for you. (Unlikely though).
You should re-name this to... "Making a super fast bike when you speed up the video" 😂
Super smart idea. For someone with strong legs, thats so cool and handy. Force to push hasnt been the issue personally but high rpms like any motor(human capability), there is a limit
You indeed need alot of leg watts
Lol, ifyou cannot peddle at the rpm of 60-90 then it is time to see a doctor. This gearing is insanely pointless. Average commuter cyclist is able to peddle at the 70rpm. 70rpm on this bike is more than 100kmh, how the hell are you going to acclerate to the 100kmh on a such high hear? the lowest gear at 60rpm makes you go 30kmh. And the peak power of human legs on a bicycle is at around 100rpm.
@@DoomNerd67200 _"You indeed need alot of leg watts"_ the one problem is you are limited to the amount of torque produced by your own body weight. Any more torque than your own body weight would be lifting you off the saddle instead of pushing you forward. Well, that is unless someone installed a seatbelt.
Felicitaciones al ingeniero..!
Bikes used to have a front derailleur for multiple sized cranks. I hate that this went away.
Regardless, the most effective way to increase speed while reducing the amount of force needed at the pedal would be a pulley system.
no many bikes still come with front derailleur. they've just fallen out of favor cause there mostly useless, in regards to the number of gears you'll actually need or use whil out on the road. the advantage of a front derailleur is not to get 21 speeds but to have a down shift to a smaller gear which is handy and smoother when going up the hill. where changing to a bigger gear on the back to downshift is more clunky when your required cadance is hard to maintain. with most e-bikes and a lot being hub driven its actually better just to have a small gear ratio where its easy to pedal to get started and a high one to switch into when your moving along nicely as you don't need much else.
Thanks @Plaxy100, I've been out of mtb since Sram just started introducing the XX & X1. Now back in with post-divorce budget (~$0), I'll eventually get to upper level cranksets. For now, the frisbee-sized ninja stars appearing on the granny side of 12 speed cassettes make me wonder how close these ratios still are. My Southwest US racing commonly involved >1 hour climbs at over 10,000 ft. I needed to keep the granny gears close together as I have a very rapid narrow-range climbing cadence. I just don't see how the fine tuning can remain for the most demanding XC riding when you reduce all prior solutions to a 12 speed. Thoughts? (I know, I know, I can plug the numbers into a spreadsheet to get all the ratios, but I suspect that on-the-trail may feel different than on paper.)
Front derailleur is only good for stop acceleration. Useless otherwise, just a piece of metal adding weight, dirt and rust risk
@@Aphorism89 Higher top speed is another reason for it. The tiny single cranks that come on bikes today suck ass for everything except coasting downhill.
@@Inmate533 luckily they are easy to replace and relatively inexpensive. I mean, one can eventually take them out and buy too quality ones instead. I wouldn't mind having 2 plates, used to have that on my road bike and it was great.
But now a days I'd always try to minimize. The least elements, the least maintenance and risks :/
Esta genial, boy acerlo colgar el video cuando lo tenga 😊
Sebenarnya inti dari itu adalah semakin panjang jarak poros roda belakang dengan poros engkol maka semakin besar daya yang dihasilkan. Itu bisa dilakukan dengan cara lebih simple yaitu dengan arm axtension. Tapi jadinya memang jarak poros roda belakang dan poros roda depan jadi besar. Efeknya kurang lincah bermanuver.
La idea esta super buena, pero me gustaria mirar que tan rapido puede ir en una pendiente hacia arriba, espero no pese micho la bicicleta porque tendra que empujarla o cargarla.
The best part is when he rides the bike the wrong way on a freeway
Для движения с места или в гору не плохо было бы поставить вперёд мотор колесо
Как называется втулка с внешней резьбой и двумя шлицами на площадке? Никак не могу найти от чего эта деталь, может она мопедная?
Старая шоссейная система чашка с педального вала можно любую использовать подходит
That is the number one genius thing I've ever seen and I've seen some shit ! Good fucking job man!
O problema vai ser quando a relação gastar, fazer a troca dos componentes será algo muito trabalhoso.
Não vi vantagem nesse projeto não, só da pra usa a marcha traseira!! E sem falar que solda a catraca não é o ideal, o melhor é ter feito algo que pudesse ser trocado quando desse problema!!!
Главная проблема в сопротивлении воздуха! Надо собирать обтекаемый корпус, лежачее положение велосипедиста, тогда можно развить скорось и до 100 км/ч. На велотреках спортсмены развивают до 90 км/ч. но это без встречного ветра и нужны тренировки и специальный велосипед.
It seems like there may be an easier way to do this. Like a bigger chain ring. I’ve seen them at 64 teeth.
Or just change the rear sprocket. Or both.
Either way, the end result is the same.
@@akisalmenaho8473 But both ways would end without having a video ;-) I'm pretty sure the video was the only intention for thos build, the bike will be pretty useless with that high gear ratio.
Like a real casette, not that 20 year old vintage crap, with the smallest gear with 13 or 14 tooth, instead of 11 or 10.
I'm waiting for this guy to add 3 more sprockets to allow someone to ride faster than the speed of light.
Nice mod, i look forward to seeing more made and ridden around town post haste!
Pretty sweet pulley system... Hopefully tour de France doesn't try to use it...
Game changer
Excellent hardwork
excellent useless device
Officer: "Sir, that's an illegal e-bike wattage."
Guy: "E-bike...?"
This system is quite ingenious. It could work with a mid-drive electric bike. The motor could be attached to the first freewheel. By able to use a small front chain ring and a large rear cog, this ebike could have insane high torque for climbing steep hill.
It would also need an insanely heavy motor drawing insane amounts of power in order to get that high torque. You would get up maybe one hill before needing a recharge.
I'm running a mid drive 750w Bafang bike now, the torque using standard mtb ratios is enough to climb any hill easily. There is no point in this system with a mid motor bike, especially as I'm getting 59kph easily as is.
@@GB-vn1tf Basically the fellow who produced this video was showing off his welding skills by not improving something that needed no improvement.
@@GB-vn1tf snap the chain and perhaps?
@@GB-vn1tf I'm going to be trying this anyway I have a couple of electric bikes with rear hub drives I've been looking for a really large front gear so I could pedal at high speeds I'm going to go ahead and try this anyway and I'll let you guys know how it works out
Alot of gullible people in these comments that don't remember basic physics.
Reminds me of the CVT transmission set up in the nissan. The configuration of the chain and gear ratio. Very cool. If you make it a electric bike no telling how fast it will go. That could be kind of scary though if you wreck.
No need to do that though, just put on a bigger front chain ring and you have the same result. My Bafang powered bike hits 59kph with normal mtb gearing as it is.
I’m sure it will break down like the CVT in a Nissan too.
remine me of a honda cvt gearbox for a mtb
The road rash could pretty ugly without the helmet...
No telling, you actually could tell very easily with the right bits of info. A standard bike gear ratio spinning at 100 revolutions per minute in a 52 12 chain ring cassette combo would yield a speed of around 65 mph. Plenty fast. Also if it's a crap bike and/or aluminum frame that's when stuff start vibrating off and breaking. Unnecessary and esthetically makes me want to vomit and my eyes want to commit suicide.
The air design of the bike it’s complementary
I would like to see this bike in the local market in Riyadh with the same sales price as the regular ones. You have applied the thought well. Good.
Good idea bur I guess it's only for flat roads with no slopes.
Se a segunda coroa fosse maior, a bicicleta ficaria mais leve para pedalar
Pelo que entendi, não seria melhor que todas as coroas maiores tivessem 52/53D e somente a pequena fosse de 9D ???
Wow 😳 that's one hell of a 🚲 bicycle 🔥🔥🔥 BEAST 👹
Now you can comforrably ride with cadence ~10
hahahaha
Wooooooooooooooooo amazing ❤❤❤🎉🎉
Just get bigger chainring (front gear) and smallest sprocket (rear gear) but you gonna need a more powerfull leg to pedal because its so heavy to pedaling 🤣
Need this for my Downhills on my recumbent
Seia bueno que el autor del vídeo nos contará sobre sus impresiones con este sistema como realmente se siente y si es bueno para subir colinas o solo es para terreno plano
No es obvio que para subir colinas no sirve?
@@benjazz8128 pues no sabría determinar eso por el tipo de relación que maneja pues el plato delantero es pequeño y si el cambio trasero sube al plato mas grande se supone que debe quedar un cambio suave para subir terrenos con pendientes, por eso le pido el favor al autor del video si puede explicarnos.
The tutorial is very good, friend, the video is also clear. Try something like this in Peru
Parabéns pelo projeto! 👏👏👏👏👏