Hydraulic brakes sibei ex nia, if you are riding a trial bike
ar, maybe can lah, but brake kit + installation might cost more
than $100 and the maintainence is sibei sibei ma huan 1... If ur
bike accepts U-brake ar, Use a dialed U-brake even much better,
maintainence low and cheap, although getting it dialed is not quite
easy but dialed u-brakes really brake better than v-brake, i swear
by it.