I think mechanical disc breaks are wonderful, and as I understand, they are easier to maintain than hydraulic brakes. Maybe someone who knows more than I can chime in on whether the latter have superior breaking power?
My bike has HUGE rotors on the mechanical disc brakes--this makes them super effective.
Oh, yeah, mechanical disc brakes are noisy. I think the noise is a great safety feature, personally!
The biggest value of hydraulic brakes is for heavier riders. Yes? No?
Why would you have to bleed the brakes after fixing a flat? How would air get in the line? It won’t and you don’t have to. You’ve got some bad info if someone told you that.My mechanical disks stop me fine, could throw me over the handlebars if I hit it too hard. (I'm 150 lb). They do need adjusting to not make noise after removing the wheel for tube or shifter repair. Takes about five minutes with a 5 mm allen wrench. Just move until you see daylight under both pads.
Mechanical disks are SO much better in the wet than rim brakes. I hit a car that ran a stop sign with rim brakes in the rain last year. I'm staying away from hydraulic disk brakes: bleeding car brakes is a nuisance task I would like to avoid on a bike. Especially after changing a tube out in the country somewhere.
I would qualify that by adding that disc brakes provide more breaking power than mechanical rim brakes, but not hydraulic rim brakes, which I have. I find the stopping power and the ability to control brake pressure superior to that of disks, especially in wet conditions. As for rim wear, yes, it will happen with pads, but I've been on the same pair of wheels (for one of my non ebikes) for at least 10 years, and the wear bar is still very prominent.Disc brakes provide more braking power than rim brakes. Also, rim brakes eventually wear your rim out so you'll need to replace the wheel.