Originally Posted by
Doomrider74
Hopefully never. Rim brakes are a poor design: any essential system that works by wearing away a structural component of your bike is an inherently flawed design and should be re-thought. Disc brakes solve that issue.
People who need to stop to adjust disc brakes whilst out on rides clearly don't know how to work on or set them up. User error, not design error.
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.
How many miles do disc pads last? Maybe a 1000? I got less on mine. That would be 10-15 changes per year for me. THAT is a problem needing a solution.
https://prodifycycling.com/bike-disc-brake-guide/