UAE On Rim Brakes
07-14-21, 08:50 PM
#52
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I own one bike with wrench-free thru axles. I own more than one bike with thru axles that require wrenches, and I own more than one bike with quick releases. My experience is that it takes no more time to remove and install a wheel with wrench-free thru axles than it does to remove and install a wheel with quick releases. There is no deliberate ignorance -- it's my experience.
07-14-21, 08:52 PM
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07-14-21, 08:53 PM
#54
Pizzaiolo Americano
07-14-21, 09:02 PM
#55
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Ive said it many times but IMO pro cyclists are not the ones who need disc brakes, its us punters.
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07-14-21, 09:06 PM
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07-14-21, 09:08 PM
#57
Pizzaiolo Americano
6.9kg for the rim brake version.
https://www.youtube.com/watch?v=e4rfFAznD7E
https://www.youtube.com/watch?v=e4rfFAznD7E
07-14-21, 09:09 PM
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A GCN review of the 2020 Colnago V3r (Davide Formolo's) rim brake bike was 6.9kg.
That is why I doubt it.
07-14-21, 09:10 PM
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Cervelo R5 Disc is 1/2 pound more than the rim version in DA.
07-14-21, 09:14 PM
#60
Pizzaiolo Americano
The V3R that UAE is riding was specifically developed to be light, unlike the C64. The disc frame only weighs 790 grams. That is pretty light for a company that doesn't make light bikes...
07-14-21, 09:34 PM
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You might want to read this:
https://cyclingtips.com/2019/07/how-...-change-wheel/
https://cyclingtips.com/2019/07/how-...-change-wheel/
Twenty seconds from mechanic arrival to rider departure is a few seconds longer than the fastest rim brake wheel changes, particularly if we look back to the days when lawyer tabs were filed off. Back then, a very good mechanic could swap a wheel and push their rider off in less than ten seconds. But with lawyer tabs in place, the gap narrows considerably – in fact, a few mechanics have told me that a disc wheel change with an impact driver can be faster.
In the end, thanks to a bit of mechanization, it’s largely a wash. There’s more time to be gained or lost in the skill of the mechanic than in the type of axle and brake used by the rider.
In the end, thanks to a bit of mechanization, it’s largely a wash. There’s more time to be gained or lost in the skill of the mechanic than in the type of axle and brake used by the rider.
07-14-21, 09:46 PM
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Have you been watching the race? Have you not seen the mechanics running up to the bikes with a wheel in one hand and a drill in the other? Have you not seen the mechanics doing bike swaps instead of wheel changes? I suggest you rewatch the Tour and see what you apparently missed the first time.
Last edited by Atlas Shrugged; 07-14-21 at 09:56 PM.
07-14-21, 09:51 PM
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The bikes that they ride in the tour are rarely exactly the same stock as the OEM versions of the bikes sold retail. For one thing, the wheels are almost always different.
07-14-21, 09:54 PM
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UAE chose rim brake bikes for today’s stage in the Tour. One of the descents is the one that Sagan crashed on in 2018. A very technical drop, which makes their choice interesting. The team must feel the slightly lighter bike outweighs the advantage discs have over rims in braking. My next frame is going to be a rim brake only because it is a warranty replacement and Trek won’t replace it with the disc frame. Of course, all those guys descend better than I do so it is probably less critical.
07-14-21, 10:06 PM
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Last edited by colnago62; 07-14-21 at 10:13 PM.
07-14-21, 10:37 PM
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07-14-21, 10:50 PM
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In the 2019 Cycle Oregon, they had several riders with heat damaged carbon rims from one of the descents between Steamboat and Culp Creek Oregon.
Of course Cycle Oregon riders may use their brakes very differently than pro racers.
Of course Cycle Oregon riders may use their brakes very differently than pro racers.
07-14-21, 11:42 PM
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07-14-21, 11:49 PM
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07-15-21, 02:33 AM
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Have fun riding your BSO buddy. You wait till starva hears what you've been up to.
07-15-21, 03:23 AM
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UAE chose rim brake bikes for today’s stage in the Tour. One of the descents is the one that Sagan crashed on in 2018. A very technical drop, which makes their choice interesting. The team must feel the slightly lighter bike outweighs the advantage discs have over rims in braking. My next frame is going to be a rim brake only because it is a warranty replacement and Trek won’t replace it with the disc frame. Of course, all those guys descend better than I do so it is probably less critical.
It was also quite interesting that they used disc brakes on the earlier wet mountain stages. I can only think they would do this if the braking performance was superior. Otherwise why not use lighter rim brakes for ALL the big mountain stages?
So what does this mean from an average rider's perspective? Not much other than high-end rim brakes are still pretty effective and super-light, but disc brakes work more consistently in a wider range of conditions. Changing wheels is trivially easy on both when every last second doesn't count. I personally prefer through axles for their easy self-alignment.