Just installed the PRO BAT hydraulic rear brake system on my 125cc pit bike, and here's the real deal.

First off, the blue caliper looks sick! Installation was smooth—no bleeding needed out of the box (big win). Came with extra pads too, which is clutch for future maintenance.

BUT... the 190mm rotor caused drama. Bolt pattern didn’t match my buddy’s SSR bike despite listing compatibility. Double-check your model specs before ordering!

Performance-wise? Stops my bike like it hit a wall. The hydraulic pressure feels premium compared to cable brakes. Only gripe—wish they included a universal adapter bracket for different mounts.

TL;DR: Great upgrade if it fits your ride, but verify measurements unless you wanna play return-label roulette.