All new master cylinder with an ergonomic lever blade with reach adjust High flow 4 piston caliper with pad activation dial(PAD) Clean cockpit design streamlines cable path for internal or external routing EZ Plug simplifies internal routing while keeping the brake pre-bled for quick and easy installation 1900mm x 5.0mm performance hydraulic hose Suitable for DH, enduro, trail and E-bikes Designed for 2.3mm rotors