Originally Posted by
GhostRider62
In 50 years of cycling, I have never wore out a set of rims from braking.
My training wheels (Flo 60 carbon) have more than 50,000 miles on them.
I have worn through rims many times. When I had rim brakes on my mtb I knew the rim was toast when I got the thump from the low spot. This was with considerable wet use, though.
I wore through the brake track on a Mavic Open Pro last year. It started shaking/pulsing when braking and I measured it with a micrometer and it was worn down a substantial amount. Dry riding on the road only.
Usually my rear rim will crack before this happens so this surprised me a bit. I never get much more than about 10k miles from a rear rim on any bike ever.
I have seen the brake track blow off of another rider's bike on two separate occasions. Scary.