The Clarks M4 (2022 version) is their most powerful brake produced to date. Featuring the revised calliper design with 4 pistons per calliper, it applies more braking force to the rotor than any other Clarks M range of hydraulic brakes. Designed to meet the demands of downhill riders and e-bike riders and commuters who need more stopping power from their brakes. The M4 has a 2 finger ergonomic lever blade with reach adjustment, forged alloy callipers and uses mineral oil fluid. Features: Lightweight hydraulic disc brake set Revised calliper design Self adjusting 16mm pistons Powerful 4 Piston hydraulic brake calliper Mineral oil fluid Post mount calliper & international standard compatible 2 Finger lever with reach adjustment 180mm front rotor, 160mm rear rotor 180 post mount bracket included Weight 242g (rear calliper and lever) Approved to BEN 15194 regulations This set comes with the hoses connected, filled with mineral fluid and pre-bled. All ready to fit straight onto your bike. It also includes all the bolts and fittings you will need, as well as 2 spare olives should you wish to reduce or replace the hoses. Front hose length is 800mm and Rear hose length is 1800mm.This is a UK specification set, front brake/right hand lever, rear brake/left hand lever. We deliver all our brake sets as standard, using the Royal Mail first class signed for delivery service. Replacement rotor (CL-160)Replacement disc pads (VRX851)