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Shimano XT BR-M8120 Disc Brakes



The Shimano XT M8120 Disc Brakes feature Servo Wave levers, hydraulic lines, and M8120 disc calipers. Designed to offer increased braking performance to aggressive trail riders, the new DEORE XT BR-M8120 4-Piston Hydraulic Disc Brake Caliper provides 20-percent increased power when compared to the BR-M8100 2-piston Hydraulic Disc Brake Caliper. Compatible with the existing DEORE XT M8100 lever, the addition of the 4-piston calipers gives riders additional tuning options. The brakes feature smoother operation, subtle control with minimum free stroke, a sleek, durable and clean master cylinder, and easy maintenance. Separate reach adjustment and free stroke adjustment allow you to customize levers for hand size and comfort. The XT M8120 disc brake calipers feature radiator backed metal pads and ceramic pistons. Updated clamp pairs with new I-Spec EV system for greater flexibility and action-optimized cockpit layout. Sold as front or rear. Rotors not included.


  • Weight: 320 grams (rear: not including rotor) 
  • Hydraulic Hose Length: Ft: 1000mm Rr: 1700mm 
  • Easy to tune ergonomics
  • Ice Technology Radiator pads

 Hint for breaking-in: New disc brake pads require a certain break-in period in order to provide the full brake power. The following procedure has proved oneself: drag braking on a downhill until the brake power noticeably increases. Then let the brake rotor cool out. Afterwards do 20 full stops braking from a medium speed. Attention: the rotors get very hot, do not touch them! 

Model Number
Item Code
Shimano XT BR-M8120 Disc Brakes