It's why I bought an EV motorbike instead of a 125cc. I've got 8000w peak power and 72v 48ah battery on my electric dirt bike and it's fully UK road legal as well. 0-30 in 2.9 seconds is what I've measured lol and it's restricted at 54mph sadly which is strange as it can maintain that even up a kind of steep gradient.
I only wear one at night, in the day time...naaa 😂.. its safer like but ya just look stupid wearing them 🤣.. I thought about wearing more a motorcycle helmet but that's just OTT for a Ebike that goes 30mph. I'll risk it for a chocky biscuit plus you only live one very short life so might aswell live it to its maximum 🫡
I have a 2000w kit and for me it’s plenty. Going 35mph down my favourite trails is more than enough to get my adrenaline flowing. It’s always a good idea to upgrade your brakes to handle the extra speed. 🤘
UK law on them sucks. The only good thing about it is that it's not enforced because our government have underfunded them for the past decade :). I ride my 1500w like I'm on a normal bike and nobody even looks twice. In a rural area like where I live you need to be able to get to the next town really quickly if needed and a quick ebike is perfect for that.
I’ve had the same sized powered ebike kit (not Kirby) on a Halfords pushbike for nearly 5 years and I’ve done 50mph only one time (on private land) just to see what it was like, it was ok but I honestly believe the sweet spot is 27 mph for this type of combination of ebike. Having so much power is great for the acceleration up to the cruising speed of 27mph and it’s very handy for getting out of a potential conflict with another vehicle.
Mine does 35 top end speed and I agree that 28-30 is the ideal cruising pace. Plus I can gear nearly every bike to have a comfortable pedalling cadence even at that speed I still like to pedal.
I Myself am a teenager and you are correct in a way haha. i have the 2000w kit and oh man, the temptation of just full accelerating all the time. dw i do keep safe by only going high speeds on empty roads or off-road. but going 20-25mph in a town where i can be the same speed as the traffic makes me feel so much safer and more relaxed.
Thats the name of the kit when it happens the BONKERS kit. PS where are the hi power riding flip flops. Got my 2000w kit a couple days ago just waiting on a few parts to turn up b4 fitting TANUS tire liners to avoid punctures and the aggro of changing a rear flat / 220mm front disc & the mount to switch from 160mm. Rewatching your full fitting video for the 10th time
Put schwalbe tires on your bike as well mate if you don't want a flat. My bikes done 3000 miles in the past 11 months through some awful maintained country lanes as well as the city and never had a flat. The tires are still in excellent condition as well I reckon I can do another 3000.
I can get to 40mph on the flat, 45 down slight incline(15.5mph without special effects obviously) running a 52v 20ah battery, 45a peak on 1000w hub motor from 1000w Terradise kit & Risunmotor controller & display combo. Doesn’t sound overly quick but for anyone that isn’t familiar with the availability of speed on a 20kg bike, it’s too much or at least can be. When I started on 500w with a 15.5mph limiter, it felt great, got up to speed with no issue, battery lasted ages at limited speed etc… that got boring so I removed the limiter and managed 24mph(was 36v at this time) I then shunt modded for more torque and went over the top pulling 1800w peaks which caused me to replace the battery fuse for higher amp as it kept popping. I then went for a 48v 13ah pack, slightly better acceleration, wasn’t keen on the 7V voltage sag under load but it was fun nonetheless. Top speed at that point was 28mph which prompted me to get a better controller with field weakening which got up to 32mph. Upgraded to a 20ah 48v battery which gave more range and less sag. Then upgraded the controller to a 2000w one with no field weakening, dropped top end to 30mph. Bought the 1000w kit with a better wound hub motor which gave me 35mph top speed. Got the new Risunmotor controller and that gave a little more. Eventually ended up with a 52v battery on the 1000w hub and Risunmotor controller, shit torque for 2kw but nice top speed. My point? If I was to jump straight from no power to 52v I would have definitely killed myself several times over. Start lower speed and work your way up once you’re fully comfortable and competent. My next step is gonna be a shunt mod on the risun controller for more torque; whether my battery can handle it, we will see. Here’s a question for you though Dude Stuff; do you have any recommendations for low turn motors with a high top speed and maybe high turn motor with great torque but high efficiency and power at low speeds? (Non geared) would be interesting to test the difference at the same power levels.
Nice build my brother. Upgrade that fork to a through axles and 38mm you won't worry about the speed wobbles so much anymore. Bigger and better brakes are a must for stopping that weight. Cheer's
People would absolutely buy this kit including me. Sometimes that power isn't necessary for top speed but rather for people who live in areas with a lot of steep hills. 1500/2000w is good enough for flat roads but when you approach 30° hill it just dies on you. Couple things for you to consider-you should try to find controller that's compact enough so it can fit inside the triangle of M/L frame. In order to do that you should sell batteries with smaller capacity. 24ah is amazing but for most people who commute to work/school etc 20 or even 18ah will be enough. Second thing is not for you to consider but rather for people who buy this kit. UPGRADE YOUR BRAKES. Top speed is not the most important thing when it comes to ebikes if you can't stop it properly. Shimano saints, magura mt5 etc are the brakes you need. Those cheap tektros, old avid brakes will be cooked after few aggressive "15"mph rides :D
There's one hill on my commute where even with 1500w on full power + my leg power I still can't go faster than 14mph up there and it goes on for almost a mile...🤣. I feel like that's the only time where I think to myself I'd like more power.
Tbh the problem with most of these cheap Chinese DD motors is that there are no options to have different windings. I'm pretty sure if there as less windings the torque is higher, but top speed is lower for the same amount of volts and amps put in. Also, where are you that 2000w is dying on you ? Must be steep😂😂
I did a 2000w conversion 2 years ago. Brilliant bike. Thing is, someone online recommended Super Moto X tires. Heck, those tires have lasted 2 Years of daily hard use. They are indestructible!
Been thinking about an Ebike conversation since about 4 days ago when I was advised that the noise on my 19 year old two seater convertible I bought new is the Alternator bearings that's damaged the pump and A/C pump which is going to cost around £1,000 and not to mention I used steel seal for a cracked head that was caused coming back from Holiday in Cornwall that got me lost resulting in a 9 hour drive that F ed the Head so I've had enough of cars and paying out. I want one of these bikes when my car grinds to a halt. Luckily it still passes the MOT with advisories. Thanks for the great video best wishes from East London.
That one is definitely OTT. Insurance is really about liability to others particularly in terms of injury. If somebody stepped out of their garden onto the pavement that you were hooning down at a ‘loose’ 15mph and you hit them it would make a tidy mess of both of you so it needs to be mandatory for a machine like that. However, an eBike speed limit of somewhere around 25mph without all the regulations seems to be reasonable to me.
Great video, I'm looking for my next bike build, still running my 1980's Raleigh on 72v, so time for an upgrade, could you sometime do a video about what make the best bike candidates for hub motor conversion?
You're spot on with the analysis of 15mph is too slow, I have a 250 Watt mid drive bafang motor fitted to my mountain bike and it's not quick enough to get you out of trouble, I've had many occasions where I wish I had more power just for 10-15 seconds to get me out of danger. On the other hand I still like the 250 Watt because it still encourages me to use it for exercise. It depends what you want the bike for, I do agree 15 mph is too slow.
I like diy full suspension MTB with 2000w rear wheel and 1000w front... 45a/22a dual 48v batteries. I've built 4 ebikes to find what I think is a perfect combo. I'm building a 3000w/1000w bike now, but I think that is overkill. 32 mph a safe top end.
That set up on a dh bike would be mega, u need a slack head angle at them speeds to keep it stable and big brakes. Im thinking saints with 240mm rotors. Been on a 40mph set up on a commuter bike and it was terrifying but thats what made it so fun😅 i wouldn't be on the pavement tho someone pulls out of there drive your toast
15mph is a joke, when you can pedal faster. I did well over 40mph going down steep hills in Wales, it feels so much faster. I don't cycle on the side of the road if there's potholes about, that's too dangerous. Drivers complain if you cycle further out, but they also complain if you swerve to avoid a pothole.
Seeing this I definitely want to go for the 2000watt kit.... I was in a motorbike accident and broken Fractured my femur pelvis and hip 5 years ago.... Not my fault either... Please just be careful definitely a helmet is required for this
The UK government are having a review today (29-2-24) about ebikes. On the table is doubling wattage from 250w to 500w. Also allowing a throttle. Max speed would be the same though. Better, but is it enough? I'd like to see 20mph upper speed limit on the table too.
It would definitely be an improvement but I rarely see the government allow anything that just makes life better for people without lining their pockets or adding some more control over the average man. But fingers crossed!
Mate, most of the time no helmet, no tax, no insurance and riding that fast on the pavement where kids could wander out of their houses... I really do think you should have a word with yourself.
why are there all these creepy trolls trying to defend the dangerous behaviour. these are the same cowards that will cry like a baby when they caiuse an accident.
There are plenty of ebikes that are made to and can handle 60mph . While I don't agree that anyone should be able to ride one I agree that there should be some special licence or training course for it similar to cbt . What happens however it you then need to add brake lights, indicators etc which then adds more weight to the bike . It should be in a class of its own as it will weigh far less than a 125cc . @@RMF76
I would buy one, not bothered about it doing 50mph just one that can get me to work and back and get up hills easy. I’d be even willing to insure it. Great content. 👍👏🏻👏🏻👏🏻
@DudeStuff Hey just a quick question- What are your thoughts about pushing 4kw through 1.5kw/2kw hub? My idea is same battery, same controller just 1.5/2kw hub. I know it's not designed to do that etc but weight difference is quite substantial. Plus it would be a bit cheaper to get smaller hub motor. Want to know if you have tested that kind of power on these 2kw hubs?
I watch your clips over and over on the tv then comment on my phone man keep the videos coming I’m gonny get my self a helmet for when I upgrade my next bike I kinda want the 60 amp now haha .. I’m still loving the 2kw kirbe kit no complaints mate your videos are what sold the kit to me best money I’ve ever spent lol just would love to know what the bms is like in my battery but I don’t want to open it up and mess about at the same time 🙈 recommend a battery dude please 😂
I would buy this it's fast enough but still looks like a bicycle, I would cruise and maybe open it up on long stretches where you can see way ahead. I want an ebike but they're either ugly or look like motor bikes, my road bike will roll at 35mph on a slight descent.
Sweet!✌️ Specks looks great, just ar fast moped! What range does it have at full blast? How much did all kit cost, where did You get it? I want one, just not sure if i can afford it..🤔
I have a 2000w kit I use for commuting and for me it's perfect other than I would like better range but dont want a huge battery. This kit would be fun but pointless for me personally. I just want good torque with a good range.
I’ve just ordered the 3000w kit with the new 60v battery. I’m sure it’s an 8 speed on the cassette I’m installing it on to a 26inch so you think the 8 speed will fit??
A pretty usable bike in my opinion, that would make for a good commuter. I totally agree that if you hold a driving or motorbike licence, you should be able to ride more powerful ebikes.
Seems like a bike you'd need motorcycle gear for that and yeh for someone whose only ridden a push bike. It's a bad idea. Although looks mental and like the colours. Does it look more purple when it's not on camera?
the QS273 with a bit of mechanical skill will mount to mtb if you find the right one. check out e-bikeguy honestly a QS205 v3 with statorade and hub sinks for cooling is a real lot of power, will fit mtb just fine. and Id argue that is enough sickeningly fast, 5T version is like twice as fast as sur ron. with a fardriver ND530 or 680 and those 2000W motors are great, and can get you to top speed. But with a higher end controller and motor, the pull is strong.
I own a Rize Electric Bike (Blade 2), with a 1000 Watt Bafang rear hub motor and a really great on board programmable computer. In the special "Unlocked" mode, my bike can do 50 km/hr. Even at the locked in limit of 32 Km/hr, the speed feels rather dramatic - Especially down hill. Now, my Blade 2 weighs in @ roughly 90 LBS. They list it @ 85 LBS, but this beast of a bike feels closer to moped frame weight than it does to a regular sports bike. One of the concerns I have about going at high speeds on electric bikes is can the bearings handle such highway speeds ? If you go 40 or 50 MPH on a bicycle frame which was not designed for it, then what can happen besides the possibility of high speed wobble ? Is it possible your front or back wheels could fail ?
A few seconds into the video: No helmet. All dark clothing. Hands constantly leaving the handlebars. Small front brake disk. Untested load bearing capacity on a random donor MTB. Very poor road positioning with a car following. Every point can and will be used by "the powers that be" to ban e-bikes in general. E-bikes really need to be in specific regulated classes. Requiring different levels of insurance, speed rating, frames, geometry, brakes, helmets, lights, mirrors, suspension, etc. It's not all negative: The video was well filmed and recorded. With clear sound and very informative dialogue by an experienced e-biker/motorcyclist. Final note: The European 45kph/28mph "Speed" e-bike class, with pedal assistance and NO throttle is a nice performance level. When the machine is specifically designed to cope with this speed.
I can get 38mph out of 1000watt hub 52volt battery 40amp controller get about 15 miles on a charge if i run it flat out constantly, 30 amp controller gives me 20 miles but wont go over 35mph and is shockingly slow of the line
Nah cant agree on the licence thing . Road cyclists can hit 20mph and even 40mph down hill . Should be like america with 750w limit at least . Registration isn't a big deal and insurance but that's it .
15mph is too slow and can be quite dangerous in stop start traffic but on the flip side common sense escapes a growing number of human beings these days. Just because something can do more than 15mph it does not mean we have to do it I consider it as a safety cushion to have more than necessary whether it be a bike/car or time.
How hot are the brakes getting? It would be interesting to see stopping distances with current brake setup. Maybe take it somewhere out of the way and set up a couple of cones and brake down from 50/40/30. Then see how many times you can brake from say 50 to 40/25/10 before brake fade. Also, with the bigger kits like this, what are the stresses on the frame over time. Is metal fatigue going to be an issue due to flex. Some might say it is a mountain bike, so OK. I am concerned this is may be too much for a standard frame. Stay safe, dude.
I would like to see ebikes with motorbike suspension brakes indicators and mirrors dirtbike and road bike styles. Basically lower powered electric motorbikes with Pedal ability but a range of speeds from maybe starting at twenty and going up to to sixty. So that they can accommodate people of different age and experience and also be more affordable than the motorbikes we have now😊
Much more chance to get stopped and fined by the police with a moped looking e bike 🚨👮🏻♂️ Whereas a e bike that looks like a bicycle won't draw attention to the police!
I know you know what your doing better then anyone but maybe some triple clamps upfront might add that little extra weight you need keep the front end down 👌 worked with mine like
@@JudeTheTH-camPoopersubscribe Yeah, I'm thinking that would be better than a small displacement motorcycle for running errands and commuting. Nimble, and you can ride down a sidewalk and maybe no one will call you out, if you're not misbehaving? Looks a scream.
Wish mid drive would go to 4000w\higher without paying an arm and leg for custom😅. Sucks bafang is gimped and being regulated but other companies arent weird...
Just becarefull as to not shear off the back with that amount of power😂. As ya say mate bicycles arnt designed with a motor inmind.. aluminium is light and kinda strong but not really 4000w power strong, the motor will stretch the aluminium which in turn will compromise the strenth at the back.. So basically one day youll pull the throttle and the back end will snap and the wheel will be flying around erverywhere 😂.. Anyways great video mate 👍 appreciate it
My bike does 40, maybe a tad more with the wind in my back and a tad less up a steep incline. That being said, mtb's are actually made to go *that* fast, or more... the world record for a downhill mtb is 167Km/h. There is a difference in quality of components, but he was using a stock frame. As long as you stick to the actual known brands, I wouldn't start worrying about the bike until I would probably double the speed I'm going now. Frame would hold that just fine. It's the brakes which would fail, since I'm using stock 2 pot xc brakes, not even proper DH brakes which would be fine. Most importantly, the component which would fail is without a doubt me the rider. Bicycle infrastructure isn't made for high speeds, not withstanding the 'other traffic' issue. Just because the bike could do it when prepped correctly, and probably I would be perfectly fine riding at a place designed for it, it's absolutely going to put me in a hospital if had an ebike which would do those speeds and I would use it on public roads. Mopeds due to their accident rate ( and consequences ) were forced to wear helmets here, when they are allowed to go only just as fast as en ebike. Hitting concrete or asphalt with that dome surrounding your brain. while not wearing a helmet, even at 40km/h can end quite badly. 40Km/h is plenty of fast when your bone's are the only structural part trying to stop all your mass from carrying on in the same direction. Once you're reaching 100km/h, you're no longer in moped territory ( tuned mopeds can but most don't go that far ). I feel like: if I wanted to go those speeds, I should be on something which fits the infrastructure I'm using. I ride my bike with shorts on all the time if it's hot, I wouldn't get on a motorcycle without propper gear on. Speed alone isn't an issue, it's the infrastructure and fellow users of said infrastructure and the gear you're using. I actually think most people would be perfectly fine on a 20mph ebike, it matches better with local infrastructure certainly when our politicians finally change the max speed in built up area's to that same ~20mph. It would decrease accidents by so much if all users are going around the same speed as traffic will be much more predictable.
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Yes more content please about the 3,000W Kit please 😊
The acceleration is the fun part that brings smile on your face 😊
Absolutely
It's why I bought an EV motorbike instead of a 125cc. I've got 8000w peak power and 72v 48ah battery on my electric dirt bike and it's fully UK road legal as well. 0-30 in 2.9 seconds is what I've measured lol and it's restricted at 54mph sadly which is strange as it can maintain that even up a kind of steep gradient.
Mate , please wear a helmet man always. Not everyone watching this has your skill or knowledge.
Ok kevin
@@firstlast-ns2qo
You're good you don't need one.
I only wear one at night, in the day time...naaa 😂.. its safer like but ya just look stupid wearing them 🤣.. I thought about wearing more a motorcycle helmet but that's just OTT for a Ebike that goes 30mph.
I'll risk it for a chocky biscuit plus you only live one very short life so might aswell live it to its maximum 🫡
@@sirbuzzkillington3263don't fall
@@sirbuzzkillington3263 hi idiot - please make a youtube video, stating what you just typed, with yoru face on camera and i will make you famous.
I have a 2000w kit and for me it’s plenty. Going 35mph down my favourite trails is more than enough to get my adrenaline flowing. It’s always a good idea to upgrade your brakes to handle the extra speed. 🤘
what battery did you get ? or other battery from amazon?
@@jornmulder I have a 52v 20ah battery that came with the kit.
@@jonniebeck1395what controller do you have mate?
@@Souljakhan008 I’m running a 35amp sinewave controller with a 52v battery.
Which is the max speed expected for 2000w kit? I got mine and can’t pass 27mph
legal here in Canada its 500w .20 mph , 28 mph with peddle assist . good enough , kits are another ball game. love your builds !
UK law on them sucks. The only good thing about it is that it's not enforced because our government have underfunded them for the past decade :). I ride my 1500w like I'm on a normal bike and nobody even looks twice. In a rural area like where I live you need to be able to get to the next town really quickly if needed and a quick ebike is perfect for that.
@@JudeTheTH-camPoopersubscribe awesome . yes our kit bikes are built to be stealthy and bicycle looking as possible . happy riding brother !
I’ve had the same sized powered ebike kit (not Kirby) on a Halfords pushbike for nearly 5 years and I’ve done 50mph only one time (on private land) just to see what it was like, it was ok but I honestly believe the sweet spot is 27 mph for this type of combination of ebike. Having so much power is great for the acceleration up to the cruising speed of 27mph and it’s very handy for getting out of a potential conflict with another vehicle.
Mine does 35 top end speed and I agree that 28-30 is the ideal cruising pace. Plus I can gear nearly every bike to have a comfortable pedalling cadence even at that speed I still like to pedal.
I Myself am a teenager and you are correct in a way haha. i have the 2000w kit and oh man, the temptation of just full accelerating all the time. dw i do keep safe by only going high speeds on empty roads or off-road. but going 20-25mph in a town where i can be the same speed as the traffic makes me feel so much safer and more relaxed.
What’s the faster you can go. I’m thinking of getting a 2000w kit. And if you know, can you give me the exact place you got it from
@@RogCar7913 fastest I’ve been is about 48mph that’s down hill. 45 mph on a flat and probs 38mph up hill.
Thats the name of the kit when it happens the BONKERS kit. PS where are the hi power riding flip flops. Got my 2000w kit a couple days ago just waiting on a few parts to turn up b4 fitting TANUS tire liners to avoid punctures and the aggro of changing a rear flat / 220mm front disc & the mount to switch from 160mm. Rewatching your full fitting video for the 10th time
Put schwalbe tires on your bike as well mate if you don't want a flat. My bikes done 3000 miles in the past 11 months through some awful maintained country lanes as well as the city and never had a flat. The tires are still in excellent condition as well I reckon I can do another 3000.
I have a 3000W 72V, 80A, on a MTB, weighs 65 pounds, it's a rocket.
Just got my 26 inch fat tire 8000w custom built rear wheel. It's crazy, some much power!
where did you get that from Jeffrey?
@@MrSKB69 NB Power
@@JCJeffrey cheers 👍😁
I want one , but for a fat tire set up. And it's not too much.
Dude be careful, your local cops could be watching this vid 😨🚔🚔🚔
I can get to 40mph on the flat, 45 down slight incline(15.5mph without special effects obviously) running a 52v 20ah battery, 45a peak on 1000w hub motor from 1000w Terradise kit & Risunmotor controller & display combo. Doesn’t sound overly quick but for anyone that isn’t familiar with the availability of speed on a 20kg bike, it’s too much or at least can be.
When I started on 500w with a 15.5mph limiter, it felt great, got up to speed with no issue, battery lasted ages at limited speed etc… that got boring so I removed the limiter and managed 24mph(was 36v at this time) I then shunt modded for more torque and went over the top pulling 1800w peaks which caused me to replace the battery fuse for higher amp as it kept popping.
I then went for a 48v 13ah pack, slightly better acceleration, wasn’t keen on the 7V voltage sag under load but it was fun nonetheless. Top speed at that point was 28mph which prompted me to get a better controller with field weakening which got up to 32mph. Upgraded to a 20ah 48v battery which gave more range and less sag. Then upgraded the controller to a 2000w one with no field weakening, dropped top end to 30mph. Bought the 1000w kit with a better wound hub motor which gave me 35mph top speed. Got the new Risunmotor controller and that gave a little more. Eventually ended up with a 52v battery on the 1000w hub and Risunmotor controller, shit torque for 2kw but nice top speed.
My point?
If I was to jump straight from no power to 52v I would have definitely killed myself several times over. Start lower speed and work your way up once you’re fully comfortable and competent. My next step is gonna be a shunt mod on the risun controller for more torque; whether my battery can handle it, we will see.
Here’s a question for you though Dude Stuff; do you have any recommendations for low turn motors with a high top speed and maybe high turn motor with great torque but high efficiency and power at low speeds? (Non geared) would be interesting to test the difference at the same power levels.
Nice build my brother. Upgrade that fork to a through axles and 38mm you won't worry about the speed wobbles so much anymore. Bigger and better brakes are a must for stopping that weight. Cheer's
People would absolutely buy this kit including me. Sometimes that power isn't necessary for top speed but rather for people who live in areas with a lot of steep hills. 1500/2000w is good enough for flat roads but when you approach 30° hill it just dies on you. Couple things for you to consider-you should try to find controller that's compact enough so it can fit inside the triangle of M/L frame. In order to do that you should sell batteries with smaller capacity. 24ah is amazing but for most people who commute to work/school etc 20 or even 18ah will be enough. Second thing is not for you to consider but rather for people who buy this kit. UPGRADE YOUR BRAKES. Top speed is not the most important thing when it comes to ebikes if you can't stop it properly. Shimano saints, magura mt5 etc are the brakes you need. Those cheap tektros, old avid brakes will be cooked after few aggressive "15"mph rides :D
There's one hill on my commute where even with 1500w on full power + my leg power I still can't go faster than 14mph up there and it goes on for almost a mile...🤣. I feel like that's the only time where I think to myself I'd like more power.
Tbh the problem with most of these cheap Chinese DD motors is that there are no options to have different windings.
I'm pretty sure if there as less windings the torque is higher, but top speed is lower for the same amount of volts and amps put in.
Also, where are you that 2000w is dying on you ?
Must be steep😂😂
I did a 2000w conversion 2 years ago. Brilliant bike. Thing is, someone online recommended Super Moto X tires. Heck, those tires have lasted 2 Years of daily hard use. They are indestructible!
Been thinking about an Ebike conversation since about 4 days ago when I was advised that the noise on my 19 year old two seater convertible I bought new is the Alternator bearings that's damaged the pump and A/C pump which is going to cost around £1,000 and not to mention I used steel seal for a cracked head that was caused coming back from Holiday in Cornwall that got me lost resulting in a 9 hour drive that F ed the Head so I've had enough of cars and paying out. I want one of these bikes when my car grinds to a halt. Luckily it still passes the MOT with advisories. Thanks for the great video best wishes from East London.
That one is definitely OTT. Insurance is really about liability to others particularly in terms of injury. If somebody stepped out of their garden onto the pavement that you were hooning down at a ‘loose’ 15mph and you hit them it would make a tidy mess of both of you so it needs to be mandatory for a machine like that. However, an eBike speed limit of somewhere around 25mph without all the regulations seems to be reasonable to me.
yeah 15mph is too low, especially when one can cycle normally at around 20mph quite comfortably.
Agreed .
Great video, but I want to see the build from the beginning if possible to see how you did it and how you got things to fit. Take care gaz ✌
Great video, I'm looking for my next bike build, still running my 1980's Raleigh on 72v, so time for an upgrade, could you sometime do a video about what make the best bike candidates for hub motor conversion?
You're spot on with the analysis of 15mph is too slow, I have a 250 Watt mid drive bafang motor fitted to my mountain bike and it's not quick enough to get you out of trouble, I've had many occasions where I wish I had more power just for 10-15 seconds to get me out of danger. On the other hand I still like the 250 Watt because it still encourages me to use it for exercise. It depends what you want the bike for, I do agree 15 mph is too slow.
I like diy full suspension MTB with 2000w rear wheel and 1000w front... 45a/22a dual 48v batteries. I've built 4 ebikes to find what I think is a perfect combo. I'm building a 3000w/1000w bike now, but I think that is overkill. 32 mph a safe top end.
That set up on a dh bike would be mega, u need a slack head angle at them speeds to keep it stable and big brakes. Im thinking saints with 240mm rotors. Been on a 40mph set up on a commuter bike and it was terrifying but thats what made it so fun😅 i wouldn't be on the pavement tho someone pulls out of there drive your toast
15mph is a joke, when you can pedal faster. I did well over 40mph going down steep hills in Wales, it feels so much faster. I don't cycle on the side of the road if there's potholes about, that's too dangerous. Drivers complain if you cycle further out, but they also complain if you swerve to avoid a pothole.
Cool, I have a 3000w with 72v battery and 80a,
I'd like to see you going up to the ski resort in my village 😂😂😂
Awesome bike , yes more content on the 3000 please 👍🏻
Seeing this I definitely want to go for the 2000watt kit.... I was in a motorbike accident and broken Fractured my femur pelvis and hip 5 years ago.... Not my fault either... Please just be careful definitely a helmet is required for this
Broke my femur years ago too on a motorcycle, not my fault! Turned in front of me. Now I only ride crazy fast e-bikes. Go figure! Lol
Love your vids mate👍🏻 good knowledge and great content👌🏻
The UK government are having a review today (29-2-24) about ebikes. On the table is doubling wattage from 250w to 500w. Also allowing a throttle. Max speed would be the same though. Better, but is it enough? I'd like to see 20mph upper speed limit on the table too.
It would definitely be an improvement but I rarely see the government allow anything that just makes life better for people without lining their pockets or adding some more control over the average man. But fingers crossed!
So true! We can only hope. Great channel by the way 👍
@squareblueorange appreciate it thank you 😊 be interested to know the outcome today
Mate, most of the time no helmet, no tax, no insurance and riding that fast on the pavement where kids could wander out of their houses... I really do think you should have a word with yourself.
He pays tax for his motorbike, so that's not true. VED wouldn't apply for an electric bike anyway.
Tate voice* He pays no tax *cry cry cry I get extorted you need to get extorted too 😢....SHUT UP YOU BABY👶
ok officer .
why are there all these creepy trolls trying to defend the dangerous behaviour.
these are the same cowards that will cry like a baby when they caiuse an accident.
@@research_netcoms197_on_youtube same creepy trolls who boot lick and can't handle a bike
I'd like a 2000w kit with overkill brakes and suspension, that one looks like a weighted numbers game
Just built the same setup, working on 72v battery. Build batt or buy? Not sure yet Great job 👍🏽
Good stuff dude stuff that is a beast
I haven't watched the video but I can definitelty answer the question. A 100KM/H bicycle is way too much. It's stupid.
Great opinion
@@SKBKER You disagree?
There are plenty of ebikes that are made to and can handle 60mph . While I don't agree that anyone should be able to ride one I agree that there should be some special licence or training course for it similar to cbt . What happens however it you then need to add brake lights, indicators etc which then adds more weight to the bike . It should be in a class of its own as it will weigh far less than a 125cc .
@@RMF76
Ok. Well how about over 100mph on a homemade ebike 😂th-cam.com/video/IztoE-jwF4c/w-d-xo.htmlsi=UykRtFBbvcaM8fKY
i think these sorts of wattages are more suited to moto style ebikes with fatter tyres
My 8000w 72v electric dirt bike has thin tires and it's absolutely fine. 19x1.9 on the front and back.
I would buy one, not bothered about it doing 50mph just one that can get me to work and back and get up hills easy. I’d be even willing to insure it. Great content. 👍👏🏻👏🏻👏🏻
Thanks 😊
christ riding at those speeds on the footpath that is lined with driveways, Man you are taking risks.
@DudeStuff Hey just a quick question- What are your thoughts about pushing 4kw through 1.5kw/2kw hub? My idea is same battery, same controller just 1.5/2kw hub. I know it's not designed to do that etc but weight difference is quite substantial. Plus it would be a bit cheaper to get smaller hub motor. Want to know if you have tested that kind of power on these 2kw hubs?
I find 35 mph is well fast on my bicycle , 60? Not for me .
I watch your clips over and over on the tv then comment on my phone man keep the videos coming I’m gonny get my self a helmet for when I upgrade my next bike I kinda want the 60 amp now haha .. I’m still loving the 2kw kirbe kit no complaints mate your videos are what sold the kit to me best money I’ve ever spent lol just would love to know what the bms is like in my battery but I don’t want to open it up and mess about at the same time 🙈 recommend a battery dude please 😂
40mph felt perfect on my hardtail bike. Pedals being closer to the ground on hardtail feels more stable.
I would buy this it's fast enough but still looks like a bicycle, I would cruise and maybe open it up on long stretches where you can see way ahead. I want an ebike but they're either ugly or look like motor bikes, my road bike will roll at 35mph on a slight descent.
Sweet!✌️
Specks looks great, just ar fast moped!
What range does it have at full blast?
How much did all kit cost, where did You get it?
I want one, just not sure if i can afford it..🤔
I have a 2000w kit I use for commuting and for me it's perfect other than I would like better range but dont want a huge battery. This kit would be fun but pointless for me personally. I just want good torque with a good range.
Hiya mate I have a Merida big trail 500 2023 I believe it’s a boosted axel, what kit would I have too get? Can anybody help me
I’ve just ordered the 3000w kit with the new 60v battery. I’m sure it’s an 8 speed on the cassette I’m installing it on to a 26inch so you think the 8 speed will fit??
Dudes going like 60kph+ on a sidewalk! 😂
Just saw this on your FB, someone is gong to get a bargain.
I have a triangle battery and it always rattles how can i fix it
A pretty usable bike in my opinion, that would make for a good commuter. I totally agree that if you hold a driving or motorbike licence, you should be able to ride more powerful ebikes.
There is a guy on TH-cam that has a 8000watt diy kit on his ebike and took it over 100mph. That's insane.
Seems like a bike you'd need motorcycle gear for that and yeh for someone whose only ridden a push bike. It's a bad idea. Although looks mental and like the colours. Does it look more purple when it's not on camera?
From Kenya!! I want this so bad! i usually do a 45 on my manual MTB, quite handy!, i think a teen will do well with a 35
the QS273 with a bit of mechanical skill will mount to mtb if you find the right one.
check out e-bikeguy
honestly a QS205 v3 with statorade and hub sinks for cooling is a real lot of power, will fit mtb just fine.
and Id argue that is enough sickeningly fast, 5T version is like twice as fast as sur ron. with a fardriver ND530 or 680
and those 2000W motors are great, and can get you to top speed.
But with a higher end controller and motor, the pull is strong.
I own a Rize Electric Bike (Blade 2), with a 1000 Watt Bafang rear hub motor and a really great on board programmable computer. In the special "Unlocked" mode, my bike can do 50 km/hr. Even at the locked in limit of 32 Km/hr, the speed feels rather dramatic - Especially down hill. Now, my Blade 2 weighs in @ roughly 90 LBS. They list it @ 85 LBS, but this beast of a bike feels closer to moped frame weight than it does to a regular sports bike. One of the concerns I have about going at high speeds on electric bikes is can the bearings handle such highway speeds ? If you go 40 or 50 MPH on a bicycle frame which was not designed for it, then what can happen besides the possibility of high speed wobble ? Is it possible your front or back wheels could fail ?
A few seconds into the video: No helmet. All dark clothing. Hands constantly leaving the handlebars. Small front brake disk. Untested load bearing capacity on a random donor MTB. Very poor road positioning with a car following. Every point can and will be used by "the powers that be" to ban e-bikes in general. E-bikes really need to be in specific regulated classes. Requiring different levels of insurance, speed rating, frames, geometry, brakes, helmets, lights, mirrors, suspension, etc. It's not all negative: The video was well filmed and recorded. With clear sound and very informative dialogue by an experienced e-biker/motorcyclist. Final note: The European 45kph/28mph "Speed" e-bike class, with pedal assistance and NO throttle is a nice performance level. When the machine is specifically designed to cope with this speed.
I can get 38mph out of 1000watt hub 52volt battery 40amp controller get about 15 miles on a charge if i run it flat out constantly, 30 amp controller gives me 20 miles but wont go over 35mph and is shockingly slow of the line
how much amps is the bms from the battery ?
Love it thanks for sharing Steve I have sent the link over to someone
Deffo not a kit for kids, but it looks _very_ promising! Might actually get it...
Nah cant agree on the licence thing . Road cyclists can hit 20mph and even 40mph down hill . Should be like america with 750w limit at least . Registration isn't a big deal and insurance but that's it .
Limit the speed but not the power.
@@JudeTheTH-camPoopersubscribe same for cars then .
it would be better if you showed us how your bikes perfom on hill climbs ! 😉😉👍👍
true that, going with the flow in traffic is saver ! then 15km between it.
I would buy one definitely..looks good ..and well said ..
15mph is too slow and can be quite dangerous in stop start traffic but on the flip side common sense escapes a growing number of human beings these days. Just because something can do more than 15mph it does not mean we have to do it I consider it as a safety cushion to have more than necessary whether it be a bike/car or time.
How hot are the brakes getting?
It would be interesting to see stopping distances with current brake setup. Maybe take it somewhere out of the way and set up a couple of cones and brake down from 50/40/30. Then see how many times you can brake from say 50 to 40/25/10 before brake fade.
Also, with the bigger kits like this, what are the stresses on the frame over time. Is metal fatigue going to be an issue due to flex. Some might say it is a mountain bike, so OK. I am concerned this is may be too much for a standard frame.
Stay safe, dude.
I get brake fade stopping from 30 multiple times on 160mm discs and 2 piston hydraulic brakes.
"There was so much torque the chassis just twisted coming off the line"
I would like to see ebikes with motorbike suspension brakes indicators and mirrors dirtbike and road bike styles. Basically lower powered electric motorbikes with Pedal ability but a range of speeds from maybe starting at twenty and going up to to sixty. So that they can accommodate people of different age and experience and also be more affordable than the motorbikes we have now😊
You could weld a bottom bracket and crank assembly onto
a Sur-Ron or Talaria type bike.
Still watching but so far looks like regular size brake rotors? Surely a better idea to put bigger ones to give as much leverage as possible?
You built a 2 wheel tesla ?
Tbh at those kind of speeds I'd want a more substantial frame! One of those moped inspired frames maybe
Much more chance to get stopped and fined by the police with a moped looking e bike 🚨👮🏻♂️
Whereas a e bike that looks like a bicycle won't draw attention to the police!
What size bike is that please ?
your just teasing me now.
I'd buy this kit all day long!
great job mate
How much will you sell a set up like that?
You should design a bike that is built for the kits
what do you do wive the back rins you take of the bike
Beautiful purple frame, what is it?
What like are the warranties on the KirbEbike kits?
I know you know what your doing better then anyone but maybe some triple clamps upfront might add that little extra weight you need keep the front end down 👌 worked with mine like
So roughly 10 horsepower if it was a small displacement motorcycle, but with better acceleration because of the reduced weight?
(and the instant torque of an electric motor).
@@JudeTheTH-camPoopersubscribe Yeah, I'm thinking that would be better than a small displacement motorcycle for running errands and commuting. Nimble, and you can ride down a sidewalk and maybe no one will call you out, if you're not misbehaving? Looks a scream.
@@CrapKerouac yeah way better, I prefer ebikes to motorcycles tbh.
@@JudeTheTH-camPoopersubscribe I'll find out soon.
Wish mid drive would go to 4000w\higher without paying an arm and leg for custom😅. Sucks bafang is gimped and being regulated but other companies arent weird...
CYC make that sort of product. The mid drives can handle 5000w with a 72v battery.
Are these kits able to ride in the rain?
Just becarefull as to not shear off the back with that amount of power😂. As ya say mate bicycles arnt designed with a motor inmind.. aluminium is light and kinda strong but not really 4000w power strong, the motor will stretch the aluminium which in turn will compromise the strenth at the back..
So basically one day youll pull the throttle and the back end will snap and the wheel will be flying around erverywhere 😂..
Anyways great video mate 👍 appreciate it
id imagined that riding on roads even with a fast motor would not be equivalent to the impact stress on a frame, that mtbs are designed for.
Looks like that bike is so lightweight how how does it weight !!! Great freaking build brotha 🎉
sick build (Y) isit steel frame?
When DVLA do what they do my friend no disrespect.
what a beast !!!! love it
Stopping distance, 2 to 3 business days 😂
Does the 2000 kit have a battery how much is it?
I’ve got 250w roller blades if I interested?
@@Hrossey electric roller blades??
0:29 child walks off the driveway.Mate, i like the vids, but you have to sort your hazard perception out before someone gets hurt.
Well said dudestuff, people don't understand the speed concept, anything above 30mph+ is so sketch 😂😂😂
law says 250w motor, so if you get pulled over from cops... what do you tell them then? that it is a 250w motor ?
My bike does 40, maybe a tad more with the wind in my back and a tad less up a steep incline. That being said, mtb's are actually made to go *that* fast, or more... the world record for a downhill mtb is 167Km/h.
There is a difference in quality of components, but he was using a stock frame. As long as you stick to the actual known brands, I wouldn't start worrying about the bike until I would probably double the speed I'm going now. Frame would hold that just fine. It's the brakes which would fail, since I'm using stock 2 pot xc brakes, not even proper DH brakes which would be fine.
Most importantly, the component which would fail is without a doubt me the rider. Bicycle infrastructure isn't made for high speeds, not withstanding the 'other traffic' issue. Just because the bike could do it when prepped correctly, and probably I would be perfectly fine riding at a place designed for it, it's absolutely going to put me in a hospital if had an ebike which would do those speeds and I would use it on public roads.
Mopeds due to their accident rate ( and consequences ) were forced to wear helmets here, when they are allowed to go only just as fast as en ebike. Hitting concrete or asphalt with that dome surrounding your brain. while not wearing a helmet, even at 40km/h can end quite badly. 40Km/h is plenty of fast when your bone's are the only structural part trying to stop all your mass from carrying on in the same direction.
Once you're reaching 100km/h, you're no longer in moped territory ( tuned mopeds can but most don't go that far ). I feel like: if I wanted to go those speeds, I should be on something which fits the infrastructure I'm using. I ride my bike with shorts on all the time if it's hot, I wouldn't get on a motorcycle without propper gear on.
Speed alone isn't an issue, it's the infrastructure and fellow users of said infrastructure and the gear you're using.
I actually think most people would be perfectly fine on a 20mph ebike, it matches better with local infrastructure certainly when our politicians finally change the max speed in built up area's to that same ~20mph. It would decrease accidents by so much if all users are going around the same speed as traffic will be much more predictable.
Problem is cheap fork that can brake, problem are to weak brakes for that speed, and rear triangle is not strong enough
I’ve found out that you don’t even need a license to obtain insurance…
what frame?
Is the motor and battery water proof?
Yep
ought to bring the same punishment out as for scooters when you ride that speed 6 points on your driving licence