AVID Mechanical Disc Brake BB5 MTB -Application: Cross Country / Trail / All Mountain Colour: silk black Caliper design: Mechanical, Monobloc Disc: G2 CleanSweep 160mm Adjustment: Internal brake pad adjustment knob, 3D caliper alignment systemWeight: 335g with postmount front and 160mm disc Technology: TRI-ALIGN CALIPER POSITIONING SYSTEM without brake lever and cable.