Originally Posted by
Noonievut
That’s specifically what I was thinking about. I rented a fatbike last year and came across a guy with this issue with mechanical discs.
Getting water into the cable housing is far more difficult than it sounds. It can happen as evidenced by corroded cables but it’s not highly likely. Even with corroded cables, the water is probably following some salt that gets past the ferrules and, being hygroscopic, the salt actually pulls small amounts of water out of the air. Flooding of enough water to freeze the cables is not all that likely.
I’ve used cable brakes of many different flavors…cantilever, linear, and disc…over more than 40 years of commuting and never had a brake of any kind freeze. Mechanical discs aren’t any more (or less) delicate than those other brakes.