The Tech 4 Master cylinder utilizes innovative internal sealing to minimize friction, and the pivot smoothly rotates on roller bearings, enabling a reduction in spring resistance. This translates to a more effortless lever action, reducing rider fatigue and maintaining our legendary feel and modulation. Part number: HBSPC80LPU Barcode: 5056454907018 Product code: HOP Z HBSPC80LPU - Increased power versus Tech 3 - Lever shape updated to provide a more ergonomic shape orientated to provide the best mechanical advantage during braking. - Hinged clamp reducing weight and ergonomics - Shifter integration improved for more adjustability