1、After removing barrier plate, install it in front of frame,can not produce braking effect ,otherwise plates will join together and need to refill oil. 2、Fine adjustment screw of brake interior wiring tightness,fine adjust brake interior wiring tightness to achieve perfect brake handle feel. 3、Bidirectional braking,safety, piston of oil cylinder pushes brake lining,simultaneously braking to disc, more durable than normal single disc brake,avoid disc deformation caused by unidirectional braking, deaden wheels,cause safety hazard. 4、Made of high quality aluminium alloy material, sturdy, durable and long service life. 5、Professional manufacturing, stable characteristics and high reliability. Condition: 100% Brand New Item Type: Disc Brake Calipers Model: HB100 Material: Aluminium Alloy Quantity:1 Pair Category:Line Pulling Hydraulic Disc Brake Calipers Brake Mode: Hydraulic Piston Bidirectional Brake Stroke Adjustment Screws: Use Approx.2mm/0.08in Hex Wrench Weight:Approx.435g/15.3oz Description: HB-100 Adopts New Hydraulic Line Pull Clamp Technology, What Is Called: Hydraulic Line Pull? Cylinder Block Of Hb-100 Is Built In Brake Oil And Then Controlled By Brake Lining To Brake Hydraulic Clamp,brake Oil Is Built Into Cylinder Of Clamps, Which Is Similar To Oil Disc Clamps Commonly Used In Market. 1 x Pair of Disc Brake Calipers 4 x Screw