Aero (under BB) brakes and racing.

Discuss light weight issues concerning road bikes & parts.
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false_Aesthetic
Posts: 189
Joined: Tue May 20, 2008 10:27 pm

by false_Aesthetic

Does anyone have any experience with these on race-day.
e.g. Puncture during a RR or Crit; messed up wheel swap; etc/

Thanks

DamonRinard
in the industry
Posts: 221
Joined: Fri Apr 29, 2011 8:32 pm

by DamonRinard

Hi false_Aesthetic,

Yes. Your thinking is right on.

During development of the Cervelo S5, as a proof of concept, we welded brake bosses under the BB on an aluminum S1, like on a P4. Feedback from the Cervelo TestTeam (especially Daniel Lloyd, great guy!) was "Don't do it!"

How can a mechanic "check the brakes" from the car after a wheel change, etc.?

So instead, we put the rear brake back in the usual spot, and engineered the shielding stays to save the drag back.

Cheers,
Damon Rinard
Engineering Manager, Road Bikes
Cycling Sports Group, Cannondale
Ex-Kestrel, ex-Velomax, ex-Trek, ex-Cervelo

veloflyte
in the industry
Posts: 88
Joined: Sun Sep 27, 2009 3:08 am

by veloflyte

false_Aesthetic wrote:Does anyone have any experience with these on race-day.
e.g. Puncture during a RR or Crit; messed up wheel swap; etc/

Thanks


Take the advice of a veteran of 20 years of amateur racing... Don't do anything "fancy" on your race bike. Initially you may think it would be "fun" or "cool", but the reality is that once you are racing, the last thing you want is a mechanical failure. Time Trial and Tri bikes are a bit different story. The cycling in an even like that is just flat out constant speed. But in a road race or criterium, your bike gets a lot more use/abuse. Things are more likely to come loose or out of adjustment.

crashracer
Posts: 25
Joined: Fri Mar 07, 2008 9:29 pm
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by crashracer

I use them. Since I have campy on the bike, the brake release is at the lever, not the caliper. I find it easier to swap wheels on the bike since there's no top caliper to mind.

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