Powerful entry level quad piston hydraulic disc brakes and levers for Post Mount frames and forks Perfect for MTB, e-bikes and e-MTB 2-finger BL-MT401 levers with aluminum body & master cylinder and anodized aluminum lever Tooled reach adjustment Quad piston BR-MT420 forged aluminum, post mount calipers offer more stopping power and better modulation than dual piston designs Brake pads: D02S sintered metal, for superior stopping power and durability Comes pre-bled with SM-BH90 straight connection hose Compatible with 160mm to 203mm rotors, not included Attributes Brake Material Aluminum Caliper mount Post mount Disc Diameter Not included Fluid Mineral oil Pistons 4 Position Front or Rear Primary Color Black