[gc075]

My bike came with Tektro IO disc brakes which I might want to upgrade. Would changing the rotor improve anything (would it even work)? Or do I have to upgrade the whole unit?

Edit- And is 160mm the largest size for mechanical discs? All larger models I've found so far are hydraulic.

 

[Mount Dora Cycles]

You can swap like size rotors but it wouldn't make much improvement in anything other than weight. Minuscule improvement at that. Upgrade to caliper the Avid BB7's.

 

[kazlx]

You would be better off changing to new calipers....depending on your budget there are a lot of options. You should be able to use the rotors you already have. Hydraulic is definitely a better setup.

 

[aland10]

go with a magura product.......they really stand behind their products