Quote:
Originally Posted by wdb
I've only ever heard of tire blowouts from brake heat on tandems. Never on a single. There was a time when alpine descents caused enough heat to soften the glue holding sew-ups to the rim, which would then "roll" and cause a crash, but that was a long while ago.
As I mentioned earlier we have a drum brake on the back of our tandem. I use it as a "drag brake" on tricky descents, constantly engaged. I control it with a bar end shift lever. We've come down from the Blue Ridge Parkway with that setup without any drama whatsoever.
But then I'm pretty old fashioned when it comes to bikes.
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I think people do tend to exaggerate it, but temperature build up and management can be an issue with carbon wheels. It's not a real concern on aluminum wheels though. I don't own a disc brake road bike, but I do like the idea of it and more than likely will have one sooner rather than later. My CX bike has hydraulic discs and the consistency, confidence and precision they offer is hard to play down.