>>1070030>>1070070>Brake rotors rotate much, much faster than chainringsits the rotation its the temperature, braking temperature of discs is around 200C, that is what makes them cut (disc cuts is not a meme no matter what noobs say).
regarding chainrings, they should be covered, cuts already happened in group pile ups + they would keep the chain in place with almost 0 weight penalty.
>>1070062>The funny thing is this could actually be a little bit useful for mountain bikingthey used to run them in late 90s, early 2000s...it grew out of fashion - probably because easier cleaning without them...
