Tektro HD-J285 Junior Disc Brake and Lever - Rear Hydraulic Post Mount Black. The Tektro HD-J285 Junior disc brake and lever set is an open system dual piston hydraulic post mount brake thats designed for youth bikes or individuals that desire a lever with a shorter reach. Designed for use with thumb or twist shifters.

Forged aluminum 2-piston caliper includes low noise pads and uses non-corrosive mineral oil with excellent heat expansion properties

2-finger aluminum lever blade with cast aluminum one-piece clamp is durable and lightweight

Reach adjustment allows riders to get their desired fit

75-77mm reach

Easy installation adjustment and maintenance

1900mm brake hose

Disc brake rotor sold separately