Hey guys, I am the owner of the Ridley Helium SLX, Thank you very much for the feature! Picture was taken before the first ride about a week ago. It has now gone aprox 250km and I am absolutely lovning it! The pavement has indeed just been powerwashed (Just for the purpose of the picture of course) 😉
Staying upright takes skill and quick thinking... all while her body is screaming with lactic acid. Mind boggling! I couldn't even stay on my couch when I saw her slip.😆
Early in my engineering career I worked on central tire inflation systems for military applications. Inflate for highway speeds , then while still moving , default the tires for off-road. Totally dump them for when stuck or keep them inflated if shot. But it was compressor/ rotary air seal based. I wonder if they have a patent on this tech ? Someone should ! It would be pretty powerful in gravel races.
I curious if the inflator system itself will survive the brutal cobbles of Roubaix. If I had to ride and was on a Shimano team, I‘d go for a 1x11 setup with a GRX clutch derailleur and a narrow-wide gravel chainring. The dropped chains are getting too much, even in races without cobbles.
I only know central tire inflation systems from military vehicles and never imagined that this piece of tech would ever make it into road bike racing. That's neat!
I don't care what tire pressure tech does to racing. I just want it on my bikes! Not just for changing pressure on the fly on mixed terrain, also for changing pressure with varying loads (deliveries with a cargo bike) and even just to keep my tires inflated without pumping every week or after a self sealed puncture!
I think the tire pressure tech would be something that is going to require a lot of use to get used to. That knowledge would be needed to offset the weight difference, and as P-R is so flat, the weather and humidity may be a bigger issue to overcome! The lack of large elevation changes, knowing the right pressure based on you, your equipment's handling, and route knowledge may be more critical.
I have question: At Paris-Roubaix, there usually are a lot of punctures. Changing wheels with disc brakes usually takes longer than with traditional rim brakes. Also, I believe not al wheels will fit because of the different size discs, so taking neutral wheels is not as simple as before. Why no all teams (and even not ineos) riding bikes with rim brakes at Paris-Roubaix?
Yeah. The tech might help make a bit of difference, but at the end of the day, the most skilled rider will win. This isn't going to be like LeMond v Fignon where the use of new tech was more significant than talent.
Arriving 17th and almost 5' off from the front, Degekolb was the DSM's best positioned rider at Paris-Roubaix. Perhaps they could have benefitted a bit if they used the Scope system.
I would allow a system that can inflate/deflate tyres IF AND ONLY IF the pumping procedure demands an effort from the cyclist (as comparisson, the dynamo lights, which demand a certain amount of wattage to be extracted by the dynamo to power the lights). so, if they were to use some of their watts to pump again the tyres after the cobbled sector, it could be an interesting battle between cyclist who don't use this, and once they're on the smooth tarmac can full attack, and others who can benefit of better tyres pressures everywhere, but at the cost of consume more energy and be a tad slower after the cobbles bc they have to inflate their tyres. ofc, no reservoirs, or electric motors/pumps allowed. everything mechanical/hydraulic, or systems like that.
I actually think the complexity/ weight penalty might be worse than the actual effort required to pump the tyres up again. It takes relatively little efford to put 30psi into a tyre with a track pump and that's mostly using your arms. Set that against carrying a 500g+ rotary pump on each wheel for the entire race... I think that's what would put people off.
I mean, if you want to get off and pump it up or bleed it off, fine. But this particular kind of tech is just rewarding wealthier teams, AND it is just turning races into competitions between spreadsheets. I say, get rid of power meters and radios and data-driven everything. Pick a bike and spend the whole race with your choice.
Classified needs to mix their Powershift hub with cassette ranges like sram with the 10-33/10-36 red/force cassette and the campy ekar 1x13 with the 9-36/9-42, so that you can mix it with red/force/rival (xplr) axs or the campagnolo ekar rear mech (come on campy, bring eps to the ekar).
I think the ekar is the first group that can replace all the desired compliment of ratios in a 2x. But I won’t pay that much for a mechanical group set I hope so too.
If the system relies on a reservoir, how many times can pressure be dropped and restored before needing to recharge? How many cobbles/smooth transitions during Paris Roubaix?
Dr. Bridgewood, do you think a winning strategy to overcome the problem of tradeoffs between comfort and efficiency could be a quick bike switch (to a quick aero bike with highly inflated tires) at the end of the cobble section? I think the bike sponsors would love it!
it would have to come from the team car so the wait would almost certainly lose you the race. They have taken second bikes last year when they wore out their brake pads because of the rain but that was with more than 100k left.
The tire pressure thing is great and all, but I want the bar-end garage door opener! That is something practical that I actually need. Where do I get it? Looks like a kickstarter.
Hopefully the tire-pressure system proves more durable than the TPMS on most modern motorcars that turns into a constant warning light and four broken sensors within a month, tops.
@@daanprins6730 I’d guess you’re probably in Europe . I’d suggest that you guys get good quality stuff. Here in the US all that stuff is made cheap in china . 🤷🏼♂️IDK
@@phillippitts6294 I have Chinese TPMs which I bought via Aliexpress for a total of US$ 100 incl shipping and they work perfectly since 4 years with 1 battery change needed when I changed the tyres.
@@gcntech He did. It was proper foreshadowing, like on the Game of Thrones intro, where they showed each of the castles that would feature in the episode.
Very nice all those new gadgets, but as long as they even have problems with the delivery of brake pads! The bicycle industry must first ensure that they start functioning normally again! Because really everything is released but they can't even produce the current parts!
Not the same company makes the brake pads and the tire pressure system. The ‘bicycle industry’ doesn’t have a governing body that decides what to make first. There are major supply issues all across industries.
21:30 Shame it's such a record-setter, and filmed in full HD, yet, it's shown onscreen 1/6th size it could be? On something that's your own IP? For something as quintessential as Bike Vault?
Hasn’t everyone missed the point? The point is Paris Roubaix is hard, each year, the win will become less special the easier it gets with tech, it’ll become the same as any other race eventually.
Adjusting pressure on the go with no moving parts and no compressor? Nice :) Is it possible that they heat up the air in the tire for higher pressure and cool it down for lower pressure (I guess there is some kind of heat exchanger inside)? This might work with no moving parts and no compressor, you just need a battery. And a wire. And a patent, which work :) If I calculated correctly (big IF), you would need to heat up the air for ca 30° to increase pressure for 10%. Feasible? Don't know :) Physicists, the floor is yours :)
That's an interesting idea. My first thought was that maybe they have a reservoir of compressed air for increasing the pressure and just vent it to drop it. Not sure if that's enough for the whole race. It is possible that it is a combination of things, like a reservoir that they can also heat up to keep the pressure high.
@@levbobrov1398 I figured that's what is was too. Pulling some figures out of the air, let's say the reservoir was at 200 bar (2800psi), you want to run the tyres at between 4 bar/ 56psi on cobbles and 6 bar/ 84psi on tarmac, the volume of a 28mm tyre is about 1.2 litres and the volume of the reservoir is 10% of that or 120ml. Then for every 2 bar increase in tyre pressure you'd lose 20 bar from the reservoir, so you can only do that cycle 10 times. I'm not sure how many cobbled stages there are in P-R but broadly speaking that should be enough, maybe you'd need a slightly bigger reservoir..?
I think they were lying slightly about the moving parts and that it uses a valve somewhere, probably wireless/ electrically-controlled. I did wonder about heat but as you've found I think you need a fairly big increase in temperature for a fairly modest increase in pressure (because you need to calculate in Kelvin ie from absolute zero) , and if you consider you might want to go from (conservatively) 4 bar to 6bar you would then need to heat your tyre from ~280K (7C) to around 420K (147C)! That's certainly enough to melt the rubber and even if it wasn't, you'd soon start to lose that heat and your pressure would start coming down... really the only way to do it is to physically push more air into the tyre I think...
I agree, reservoir seems to be a better and most of all more realistic idea. Especially because it is mentioned "...device is connected via a pneumatic hose to a special control valve that seems to replace the core of a tubeless valve." But it does empty sooner or later. You've calculated for 10 cycles of usage - I think it's enough for one race... It would give an advantage. Or maybe... (crazy idea, here we go), they use a wheel as a compressor rotor to refill the reservoir? It's not additional moving part :) And to save watts, maybe you can switch it on when going downhill...
#askgcntech Howdy. I have a Trek FX4 with disc brakes that is one year old. Are there any do's and don'ts for changing a flat with disc brakes? I'm worried about keeping the rotor centered. No flats yet but I want to be prepared. Thanks.
With the thru axel it’s easy, the disc will go back to center as long as you have it as tight as it was before. The rear wheel with the qr is the same, you want it to be as tight as it was before, but of course you also want the bike on the ground when you do it up so it is centered. If you get a rub after changing a flat it’s probably because the axel or qr is not as tight as it was when you took the wheel off. I got my dad a FX 5 disc.
@@jonathanzappala Thanks for the information. I will try it at home so it's familiar. Yes, the new FX carbons are a great straight bar bike. Love the 1X and the feel on the road. It's like being a kid again. Night riding is a blast!
Makers will tell you it isn't such an issue now but don't forget the drivetrain only has to do the one race. So as long as the gears work for the duration of the race that's all you need
I'm all for this tire pressure gizmo, if only to provide a bit of cushion and safety for its rider. But whatever happened to suspension forks for PR? Talk about cushion and safety. And races were won on them. One would think they'd be standard by now.
#AskGCNTech Speaking of helmets - can you recommend a helmet brand that offers a good fit for oval head shapes? I find that many brands are too lose in the sides and puts excessive pressure on the forehead. Specialized is a good fit for me, but I would like more options.
Gravel tires have terrible rolling resistance compared to road tires. It will never happen until they stop making them rugged with mtb level protection. It’s not new scarily they tread but the construction.
I dislike the idea that it will become almost a necessity to use such expensive tech as the self-inflating mechanism to win races with widely varying road conditions, such as Paris-Roubaix. It means that only folks (or teams) that can afford such exotic technology will be able to compete. The focus then becomes focused more on the exotic technology than on the skills of the competing riders. When the exotic technology becomes available to the masses, from which most professional riders originate, then think about introducing it into the races.
Guarantee lots of money passed under the UCI table to get this approved by Paris-Roubaix. No money behind the super tuck, just ingenuity which is banned!
I think the UCI does need to step in on tyre width to preserve the look of the bikes and the toughness of the race, we don't want our race bikes looking like mountain bikes do we?
@@mickchaganis6607 I agree with you. However this sport is so much driven by the UCI and money that in a few years time we will have FAT Bikes been ridden all for a few kms of Pebbles 😂
Self inflating tire should be banned. That’s a ridiculous price for a bike, and if you cant do it on a f1 car you sure shouldn’t be able to do it on a bicycle. Plus you could hide a motor in it. What’s the point of cobbles if they ride on the edges and now lower their psi, might as well just stick to roads that aren’t 200 years old.
I am very surprised that it has taken so long to develop this technology. I don't know how they create the pressure but it would be quite straight forward to combine the charging of the pressure reservoir with the braking, hence having some level of the braking done by the pump (which is most likely a type of scroll pump between the hub axle and the body of the hub) and the remaining braking by the disks.
I'm not sure it has a pump at all, I think it's just a reservoir at some ridiculous pressure like 3000psi or something with airflow to the tyre regulated by an electrically-controlled valve. You could take power from the rotary motion of the wheel but it would be hellishly complicated and didn't they say it could be installed to an existing wheelset?
@@The1trueDave 1TrueDave, you are correct in saying that it is in its current form a potential add-on to a existing wheel, however I am thinking of the next step where the device is a dedicated hub. Consider the following, A solid and fixed axle as is normal, surrounding this fixed axle is a scroll type device which is sitting inside a shaped hub body. As you are riding along and there is no need of generating pressurised air, the scroll device rotates freely in line with the outer hub body and hence does not create any resistance. When you need pressure, you brake the scroll device relative to the outer hub body which then acts as a air compressor. The scroll body does not necessarily need to be brought to a stop but can rotate at an intermediate speed between axle and out hub. The great the speed difference the higher the pressure and pump action. Even pro racers at Paris Roubaix need to brake occasionally and every time they do this, some of the braking can be done by the hub pump and some by the disks putting pressure into a reservoir. In this case you don't need exceptionally high pressure in the reservoir only maybe three or four times as much than you you want to have in your tyres, depending on the reservoir volume. .
has nothing to do with tubeless, the new GP 5000 S TR is 2/220 TPI while the old is 3/330 TPI then again Corbrelli won last year on new ones and didn't have problems Mohorić punctured yesterday. Nobody knows what happens when you hit cobbles at a constant +45 Km/h. But you can be 100% sure you have better rolling resistance on tubeless and apparently pro riders/teams care about going fast. Is it the marketing only thing? Hard to say.
Have you ever wondered why cycling is "so white". I think it's time GCN address this in one of their many segments. It doesn't pass my smell test. Just sayin'
Maybe, I just wonder how much it weighs and if the penalty/benefit ratio is enough that teams with the cash will use them. I think it's too much tech and the UCI might think likewise. Ride with what you got, if you want tires at a different PSI in the middle of the race, pullover and switch out.
The theory of this tech is interesting and impressive. But in action during the race ? Get a puncture, change wheel, bye bye gizmo ... Am I the only one thinking that tech that would avoid you losing the race would be even more interesting even though they would probably be less impressive and bling ?
It refers to the chainrings front and back. Gear should be in the biggest ring up front and in the smallest in the back, in order to look stylish (according to them..)
@Yippee Skippy Agreed. It's as if the riders don't want to pit their actual abilities and toughness against each other, they have to rely on tech to see them through.
Agree - it’s no longer a benefit when everyone has it - the only winner being the manufacturer - quit all the consumerism - keep cycling the simple pleasure it should be
I'm just waiting for a bike light that works in the rain. Tried Planet Bike, Cygolite, and NiteRider. All colossal failures! Guess we don't have the technology yet. They work great with Zwift, though!
bringing out you latest untried tech for Paris Roubaix seems like a stupid idea, surely you would test it on something easy , then escalate the test , seems like BS to me
Hey guys,
I am the owner of the Ridley Helium SLX, Thank you very much for the feature!
Picture was taken before the first ride about a week ago. It has now gone aprox 250km and I am absolutely lovning it! The pavement has indeed just been powerwashed (Just for the purpose of the picture of course) 😉
Very nice bicycle and who did the wood in the background? It's beautiful and looks like it is well taken care of.
Lizzie just has supreme bike handling skills, Domane or not she probably still would have won 🙌🏆
Staying upright takes skill and quick thinking... all while her body is screaming with lactic acid. Mind boggling! I couldn't even stay on my couch when I saw her slip.😆
Early in my engineering career I worked on central tire inflation systems for military applications. Inflate for highway speeds , then while still moving , default the tires for off-road. Totally dump them for when stuck or keep them inflated if shot. But it was compressor/ rotary air seal based.
I wonder if they have a patent on this tech ? Someone should ! It would be pretty powerful in gravel races.
Paris Roubaix old school.
27 x 1 1/4" 32-630. 65 psi. Alloy rims, 36 hole. Zig-zag Michelins.
"There is nothing new under the sun."
Nice to see a local Indian bike shop get featured on GCN tech show. And good on you Ollie, for knowing IPL and MS Dhoni.
That Kestrel's paint and shape was definitely SUPER Nice.
Marginal gains from blowing the air off in the direction of rotation?
I curious if the inflator system itself will survive the brutal cobbles of Roubaix. If I had to ride and was on a Shimano team, I‘d go for a 1x11 setup with a GRX clutch derailleur and a narrow-wide gravel chainring. The dropped chains are getting too much, even in races without cobbles.
After stating the Dolomites are the most beautiful place in the world, Will Ollie be allowed back into Yorkshire?
I only know central tire inflation systems from military vehicles and never imagined that this piece of tech would ever make it into road bike racing. That's neat!
hummers have them right?
@@GCNuser123 yes
@@SimSimon87 it was a big selling point (among a bevy of others) on the first civilian versions,
before they became obese GMC Yukons!!
So so cool!
For 1000 pounds less, there's also a competing system from Gravaa. It's also a Dutch product and unlike the Scope atmoz, it is compatible with tubes.
Amazing how some brands like Kestrel anticipate the new geometry of roadbikes.
I don't care what tire pressure tech does to racing. I just want it on my bikes! Not just for changing pressure on the fly on mixed terrain, also for changing pressure with varying loads (deliveries with a cargo bike) and even just to keep my tires inflated without pumping every week or after a self sealed puncture!
Gorgeous Kestrel to close out the Bike Vault- that was the dream bike of my youth.
Those hot-pink accents were fire
Sure thing, THAT is what will make DSM suddenly win.
I think the tire pressure tech would be something that is going to require a lot of use to get used to. That knowledge would be needed to offset the weight difference, and as P-R is so flat, the weather and humidity may be a bigger issue to overcome! The lack of large elevation changes, knowing the right pressure based on you, your equipment's handling, and route knowledge may be more critical.
I come just to see people crying and complaining about these new tech…btw love new tech
There is a little wizard named Bloffypluffy who with the help from his unicorn adjusts those tyre pressures.
I have question: At Paris-Roubaix, there usually are a lot of punctures. Changing wheels with disc brakes usually takes longer than with traditional rim brakes. Also, I believe not al wheels will fit because of the different size discs, so taking neutral wheels is not as simple as before. Why no all teams (and even not ineos) riding bikes with rim brakes at Paris-Roubaix?
#askgcntech How much air is in the system. Could it be used to compensate a slow leak until the service car arrives?
99% certain it will be won by the strongest/luckiest rider on a regular bike.
Strongest/luckiest like you??? 😂🤌
2 x adjectives that certainly don't apply to me.
Yeah. The tech might help make a bit of difference, but at the end of the day, the most skilled rider will win. This isn't going to be like LeMond v Fignon where the use of new tech was more significant than talent.
Arriving 17th and almost 5' off from the front, Degekolb was the DSM's best positioned rider at Paris-Roubaix. Perhaps they could have benefitted a bit if they used the Scope system.
A wizard in the inflator system…Harry Pumper perhaps?
"...but enough about the title of your se# tape" Lol jokes, jokes
I would allow a system that can inflate/deflate tyres IF AND ONLY IF the pumping procedure demands an effort from the cyclist (as comparisson, the dynamo lights, which demand a certain amount of wattage to be extracted by the dynamo to power the lights).
so, if they were to use some of their watts to pump again the tyres after the cobbled sector, it could be an interesting battle between cyclist who don't use this, and once they're on the smooth tarmac can full attack, and others who can benefit of better tyres pressures everywhere, but at the cost of consume more energy and be a tad slower after the cobbles bc they have to inflate their tyres.
ofc, no reservoirs, or electric motors/pumps allowed. everything mechanical/hydraulic, or systems like that.
I actually think the complexity/ weight penalty might be worse than the actual effort required to pump the tyres up again. It takes relatively little efford to put 30psi into a tyre with a track pump and that's mostly using your arms. Set that against carrying a 500g+ rotary pump on each wheel for the entire race... I think that's what would put people off.
How is a “Mechanical valve” NOT a moving part?!?!
Well then the regular presta valves would also be moving parts
What do you think the coolest tech is at Paris-Roubaix? Let us know in the comments below!👇
30mm tires :-)
On the fly pressure adjustment should be banned in races.
I mean, if you want to get off and pump it up or bleed it off, fine. But this particular kind of tech is just rewarding wealthier teams, AND it is just turning races into competitions between spreadsheets. I say, get rid of power meters and radios and data-driven everything. Pick a bike and spend the whole race with your choice.
@@ericpmoss why are you crying about new tech? Remember you don’t have to buy it
You use a Garmin or count star to see where you are?
@@ericpmoss why? Remember you don’t have to buy it…so stop crying
Classified needs to mix their Powershift hub with cassette ranges like sram with the 10-33/10-36 red/force cassette and the campy ekar 1x13 with the 9-36/9-42, so that you can mix it with red/force/rival (xplr) axs or the campagnolo ekar rear mech (come on campy, bring eps to the ekar).
I think the ekar is the first group that can replace all the desired compliment of ratios in a 2x. But I won’t pay that much for a mechanical group set I hope so too.
I think this was the first week that Alex was on it. Natural and not forced. Well done.
I think the self inflating tire system will be used also in mountain biking, gravel racing, or cyclocross? Maybe!
It’s certainly has many potential applications - we can’t wait to see what it’s like!
If the system relies on a reservoir, how many times can pressure be dropped and restored before needing to recharge? How many cobbles/smooth transitions during Paris Roubaix?
Dr. Bridgewood, do you think a winning strategy to overcome the problem of tradeoffs between comfort and efficiency could be a quick bike switch (to a quick aero bike with highly inflated tires) at the end of the cobble section? I think the bike sponsors would love it!
it would have to come from the team car so the wait would almost certainly lose you the race. They have taken second bikes last year when they wore out their brake pads because of the rain but that was with more than 100k left.
So basically, it's becoming like F1, especially seeing as whatever provides and advantage gets banned after.. XD
Ha!! Cycling and F1 are weirdly very similar
#airpressuredoping
UCI approved. It's going to be interesting to see if the 4K Euro price is worth it.
The tire pressure thing is great and all, but I want the bar-end garage door opener! That is something practical that I actually need. Where do I get it? Looks like a kickstarter.
Kask needed a high visibility color.
Hopefully the tire-pressure system proves more durable than the TPMS on most modern motorcars that turns into a constant warning light and four broken sensors within a month, tops.
I never had an issue with my tpms 🤷♂️
@@pe3117 your pretty lucky then
You must have had some seriously bad luck with tpms sensors... cause at the shop I work at we barely ever have problems with them.
@@daanprins6730 I’d guess you’re probably in Europe . I’d suggest that you guys get good quality stuff. Here in the US all that stuff is made cheap in china . 🤷🏼♂️IDK
@@phillippitts6294 I have Chinese TPMs which I bought via Aliexpress for a total of US$ 100 incl shipping and they work perfectly since 4 years with 1 battery change needed when I changed the tyres.
Before 7:00 This video was all fun and games. Then Dr. Bridgewood put on the glasses. 😂
He tried to warn you at the beginning with “Dr Oliver Bridgewood” - you should have seen it coming!
@@gcntech He did. It was proper foreshadowing, like on the Game of Thrones intro, where they showed each of the castles that would feature in the episode.
Alex.. a Koala isn't a bear, its a marsupial (has a pouch) its just called a Koala..
Dr. ! Yay man. 👍
Still no factory tour of Sturmey Archer?
Very nice all those new gadgets, but as long as they even have problems with the delivery of brake pads! The bicycle industry must first ensure that they start functioning normally again! Because really everything is released but they can't even produce the current parts!
Not the same company makes the brake pads and the tire pressure system.
The ‘bicycle industry’ doesn’t have a governing body that decides what to make first.
There are major supply issues all across industries.
So did the tire inflator tech help in practice?! Gr8 show
21:30 Shame it's such a record-setter, and filmed in full HD, yet, it's shown onscreen 1/6th size it could be?
On something that's your own IP?
For something as quintessential as Bike Vault?
"...and then I pushed the wrong button and let all the air out of my tires."
Hasn’t everyone missed the point? The point is Paris Roubaix is hard, each year, the win will become less special the easier it gets with tech, it’ll become the same as any other race eventually.
10:42 12s Shimano chain isnt rare. XT and XTR widely in stock near me.
I imagine if you're tucked in the bunch, the aero penalty is considerably reduced 🤷♂️. What say you Dr. Bridgewood
8:36 alex saying *cobblebike* makes it sound like some horrendous machine xD
Oh no no, nobody wants that...
Variable tyre size coming soon 😄
Adjusting pressure on the go with no moving parts and no compressor? Nice :) Is it possible that they heat up the air in the tire for higher pressure and cool it down for lower pressure (I guess there is some kind of heat exchanger inside)? This might work with no moving parts and no compressor, you just need a battery. And a wire. And a patent, which work :) If I calculated correctly (big IF), you would need to heat up the air for ca 30° to increase pressure for 10%. Feasible? Don't know :) Physicists, the floor is yours :)
That's an interesting idea. My first thought was that maybe they have a reservoir of compressed air for increasing the pressure and just vent it to drop it. Not sure if that's enough for the whole race.
It is possible that it is a combination of things, like a reservoir that they can also heat up to keep the pressure high.
@@levbobrov1398 I figured that's what is was too. Pulling some figures out of the air, let's say the reservoir was at 200 bar (2800psi), you want to run the tyres at between 4 bar/ 56psi on cobbles and 6 bar/ 84psi on tarmac, the volume of a 28mm tyre is about 1.2 litres and the volume of the reservoir is 10% of that or 120ml. Then for every 2 bar increase in tyre pressure you'd lose 20 bar from the reservoir, so you can only do that cycle 10 times.
I'm not sure how many cobbled stages there are in P-R but broadly speaking that should be enough, maybe you'd need a slightly bigger reservoir..?
I think they were lying slightly about the moving parts and that it uses a valve somewhere, probably wireless/ electrically-controlled.
I did wonder about heat but as you've found I think you need a fairly big increase in temperature for a fairly modest increase in pressure (because you need to calculate in Kelvin ie from absolute zero) , and if you consider you might want to go from (conservatively) 4 bar to 6bar you would then need to heat your tyre from ~280K (7C) to around 420K (147C)!
That's certainly enough to melt the rubber and even if it wasn't, you'd soon start to lose that heat and your pressure would start coming down... really the only way to do it is to physically push more air into the tyre I think...
I agree, reservoir seems to be a better and most of all more realistic idea. Especially because it is mentioned "...device is connected via a pneumatic hose to a special control valve that seems to replace the core of a tubeless valve."
But it does empty sooner or later. You've calculated for 10 cycles of usage - I think it's enough for one race... It would give an advantage.
Or maybe... (crazy idea, here we go), they use a wheel as a compressor rotor to refill the reservoir? It's not additional moving part :) And to save watts, maybe you can switch it on when going downhill...
@@The1trueDave Then you get into an accident, get a puncture, and murder five pedestrians.
#askgcntech Howdy. I have a Trek FX4 with disc brakes that is one year old. Are there any do's and don'ts for changing a flat with disc brakes? I'm worried about keeping the rotor centered. No flats yet but I want to be prepared. Thanks.
With the thru axel it’s easy, the disc will go back to center as long as you have it as tight as it was before. The rear wheel with the qr is the same, you want it to be as tight as it was before, but of course you also want the bike on the ground when you do it up so it is centered. If you get a rub after changing a flat it’s probably because the axel or qr is not as tight as it was when you took the wheel off. I got my dad a FX 5 disc.
@@jonathanzappala Thanks for the information. I will try it at home so it's familiar. Yes, the new FX carbons are a great straight bar bike. Love the 1X and the feel on the road. It's like being a kid again. Night riding is a blast!
Go Ollie putting the pressure back in the can .
Lizzie Deignan used 1X gearing to win Paris Roubaix...I guess the cross chaining isn't an issue afterall........😀
Makers will tell you it isn't such an issue now but don't forget the drivetrain only has to do the one race. So as long as the gears work for the duration of the race that's all you need
@@markrushton1516 There is so little friction that she could win the race so I don't think that is an issue.
Next time to Turray hotel will drop to #Probikers , chennai. 😎
A koala is NOT a bear !
I'm all for this tire pressure gizmo, if only to provide a bit of cushion and safety for its rider. But whatever happened to suspension forks for PR? Talk about cushion and safety. And races were won on them. One would think they'd be standard by now.
Dear GCN: You spelled Luck incorrectly in the title of this video.
Yes haha
#AskGCNTech Speaking of helmets - can you recommend a helmet brand that offers a good fit for oval head shapes? I find that many brands are too lose in the sides and puts excessive pressure on the forehead. Specialized is a good fit for me, but I would like more options.
If they can make the air pass through a spoke and not a hose I'm sold
That really would be something!
Gcntech,
You should covr bike alarm and tracking systems
Good presentation chaps, but please get rid of that annoying background music, its not necessary.
If its a wet race I wonder if they will use light treaded tyres
Gravel tires have terrible rolling resistance compared to road tires. It will never happen until they stop making them rugged with mtb level protection. It’s not new scarily they tread but the construction.
Tut tut Elves you forgot the WINSSPACE T1500 as reviewed by Sachin (Hambini) @ 1200 ($1480)
seems to work well on trucks and busses.....
I've seen this coming for a while, but it's gonna be fucking expensive
I dislike the idea that it will become almost a necessity to use such expensive tech as the self-inflating mechanism to win races with widely varying road conditions, such as Paris-Roubaix. It means that only folks (or teams) that can afford such exotic technology will be able to compete. The focus then becomes focused more on the exotic technology than on the skills of the competing riders. When the exotic technology becomes available to the masses, from which most professional riders originate, then think about introducing it into the races.
I agree on the principle but the ‘exotic technologies’ are not for the masses. The masses won’t buy 4K tire pressure adjusting systems.
Add some hydrogen sulfide in the compressed air so you can distract opponents with a rotten egg smell when letting out some air
Question: Why is the audio nowhere near as good as the tech clinic one day prior with the both of you in the same studio?
Is it just me or is there jazzy background music playing in this episode? Lulling me to sleep….
See, UCI doesn’t ban everything. There We have what seems to be revolutionary tech, and it is approved.
Guarantee lots of money passed under the UCI table to get this approved by Paris-Roubaix. No money behind the super tuck, just ingenuity which is banned!
I think the UCI does need to step in on tyre width to preserve the look of the bikes and the toughness of the race, we don't want our race bikes looking like mountain bikes do we?
Too late for that old chap, looks are secondary to winning ☺️
@@jamesmoros1274 I thought the point was to keep the traditional look of a bike.
@@mickchaganis6607 I agree with you. However this sport is so much driven by the UCI and money that in a few years time we will have FAT Bikes been ridden all for a few kms of Pebbles 😂
@@jamesmoros1274 tractors down the cobbles 😂🤣
Self inflating tire should be banned. That’s a ridiculous price for a bike, and if you cant do it on a f1 car you sure shouldn’t be able to do it on a bicycle. Plus you could hide a motor in it. What’s the point of cobbles if they ride on the edges and now lower their psi, might as well just stick to roads that aren’t 200 years old.
What are you all doing to the bicycle?
I am very surprised that it has taken so long to develop this technology. I don't know how they create the pressure but it would be quite straight forward to combine the charging of the pressure reservoir with the braking, hence having some level of the braking done by the pump (which is most likely a type of scroll pump between the hub axle and the body of the hub) and the remaining braking by the disks.
I'm not sure it has a pump at all, I think it's just a reservoir at some ridiculous pressure like 3000psi or something with airflow to the tyre regulated by an electrically-controlled valve. You could take power from the rotary motion of the wheel but it would be hellishly complicated and didn't they say it could be installed to an existing wheelset?
@@The1trueDave 1TrueDave, you are correct in saying that it is in its current form a potential add-on to a existing wheel, however I am thinking of the next step where the device is a dedicated hub. Consider the following, A solid and fixed axle as is normal, surrounding this fixed axle is a scroll type device which is sitting inside a shaped hub body. As you are riding along and there is no need of generating pressurised air, the scroll device rotates freely in line with the outer hub body and hence does not create any resistance. When you need pressure, you brake the scroll device relative to the outer hub body which then acts as a air compressor. The scroll body does not necessarily need to be brought to a stop but can rotate at an intermediate speed between axle and out hub. The great the speed difference the higher the pressure and pump action. Even pro racers at Paris Roubaix need to brake occasionally and every time they do this, some of the braking can be done by the hub pump and some by the disks putting pressure into a reservoir. In this case you don't need exceptionally high pressure in the reservoir only maybe three or four times as much than you you want to have in your tyres, depending on the reservoir volume. .
@@robertrjm8115 That could work. I mean God knows what it would cost but it could work :-)
How much does it weigh?
I wonder if it's going to trickle down to mortals within our lifespan
When you count most super niced is it total votes or percent? Because Ollie’s at only 72% seems a bit low. Just sayin’
On the total votes for super nice 😎
Never before so many punctures like today. Tubeless? LOL
has nothing to do with tubeless, the new GP 5000 S TR is 2/220 TPI while the old is 3/330 TPI then again Corbrelli won last year on new ones and didn't have problems Mohorić punctured yesterday. Nobody knows what happens when you hit cobbles at a constant +45 Km/h. But you can be 100% sure you have better rolling resistance on tubeless and apparently pro riders/teams care about going fast. Is it the marketing only thing? Hard to say.
@@boogiexx will stay on tubulars, easier to mount and no punctures
Is that 4000 euros per wheel, or 4000 euro for the whole kit and caboodle?
Asking for my rich uncle...
Who leaves their bikes in garages ? Oh yeah the people who get them nicked...... 🤔🤔🙄
Would you please give us a few minutes on Campagnolo. Why do we hear so little about this company these days? Shimano is everywhere. Do they care?
That little weed should've disqualified that Ridley. What's wrong with you people?
Have you ever wondered why cycling is "so white". I think it's time GCN address this in one of their many segments. It doesn't pass my smell test. Just sayin'
No. Never wondered. It’s called humanity. Just sayin
Does anyone remember the air pressure shift systems from back in the 80's? I thought not. This tire pressure system is headed for the same graveyard.
Maybe, I just wonder how much it weighs and if the penalty/benefit ratio is enough that teams with the cash will use them. I think it's too much tech and the UCI might think likewise. Ride with what you got, if you want tires at a different PSI in the middle of the race, pullover and switch out.
Koalas aren't bears!
1:09 Motorized bike goes down. Watch the rear wheel
Baisser la masse mini de 6.8kgs à 6 kgs pourrait empêcher les mécanos d'installer des gadgets comme tige de selle télescopique, gonflage , etc...
C’est la masse mini …
valves are moving parts ...
The theory of this tech is interesting and impressive. But in action during the race ? Get a puncture, change wheel, bye bye gizmo ...
Am I the only one thinking that tech that would avoid you losing the race would be even more interesting even though they would probably be less impressive and bling ?
Most riders use tubeless tyres which don't get punctured so easily
Ollie licks his lips more often than kobe Bryant did lol
He’s dead, that’s not very funny
How about the UCI helps out the world by banning this super expensive stuff and make a level playing field
What is in Biggie Smalls?
It refers to the chainrings front and back. Gear should be in the biggest ring up front and in the smallest in the back, in order to look stylish (according to them..)
Airless tires. Since there’s room for weight with the best parts….
Either that foam insert or tires designed to never go flat….
Define "non moving part" on a bycicle🤔
Hey you guys, quit breaking the vault rules!
We can't stop them these days!
Is Alex wearing make up?
TOo much tech in cycling now.
@Yippee Skippy Agreed. It's as if the riders don't want to pit their actual abilities and toughness against each other, they have to rely on tech to see them through.
Agree - it’s no longer a benefit when everyone has it - the only winner being the manufacturer - quit all the consumerism - keep cycling the simple pleasure it should be
I'm just waiting for a bike light that works in the rain.
Tried Planet Bike, Cygolite, and NiteRider. All colossal failures!
Guess we don't have the technology yet.
They work great with Zwift, though!
I don’t even know where to start about this bs tech . Seems like it will only benefit the richest teams .
bringing out you latest untried tech for Paris Roubaix seems like a stupid idea, surely you would test it on something easy , then escalate the test , seems like BS to me
First!! Sponsor me a whoolbike please?
Add a motor and we will not far from formula 1😂😂...what ?motors are already here for many years?WTF!🤣🤣
Please don’t cry 😢 you don’t have to buy it ok?
You gotta lower the volume of these videos man! You’re like an annoying ad 🤪
Lol