It depends at what level you’re talking… Fat biffer sport category, yes almost certainly, but World Cup XC level…Almost all Olympic XC gold medals have been won by riders with rim brakes – fact. (Actually I’m guessing but I’m sure I’m correct on that).
Similarly, take almost any old car with really crap brakes (but still disc brakes), something like an 80’s Fiesta say. If you positively kick the brake pedal at 40mph, not squeeze it progressively, I guarantee you’ll lock the wheels up still. Does that mean its brakes are good enough?You’ve just prejudiced a statement then contradicted yourself. If the brakes can lock the wheels, there is no more the brakes can do to slow you down. The maximum possible deceleration of a vehicle is µg where µ is the coefficient of friction between tyre and ground. Hence why riding down a muddy slope it matters very little what your braking medium is because not much braking force will lead to locking a wheel. Grippier, more suitable tyres would make the biggest difference. You know this to be true from experience.
And if you ride when it’s raining the disc/pad gets affected just as negatively as a rim/pad would.
There could be a market for drum brakes, who knows?
I’m noticing that on your bike, amongst the other odd choices of component that you make, you are using some cheap caged pedals with clips and straps still. What’s your theory behind this?
1. Cheap 2. Being mechanically attached to a bike? No thanks 3. Flat pedals have freedom but one shin whack is always one too many
And the stem that crosses two time zones on its way to the handlebars from the steerer tube? Again, why?1. I like to see the sunrise in New York while my wheels are in Surrey 2. Being stretched out a bit more helps on climbs and aids my classic Max Biaggi cornering style 3. Short stems have always led to twitchy bikes for me