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Shimano XT BR-M8100 Disc Brakes



The Shimano XT M8100 Disc Brakes feature Servo Wave levers, hydraulic lines, and M8100 disc calipers. The XT M8100 disc brakes offer more stable brake performance in various conditions without a change in lever position. 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 M8100 disc brake calipers feature radiator backed metal pads and oversized 22mm 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: 312 grams (rear: not including rotor) 
  • Hydraulic Hose Length: Ft: 1000mm Rr: 1700mm 
  •  Optimized lever axle position with additional contact point and refined ergonomics
  •  Greater flexibility and action-optimized cockpit layout
  •  10% stiffer than M8000 even under high temp conditions
  •  Quicker brake engagement with shorter free stroke
  •  Tool-less reach adjust
  •  Free stroke adjust

 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-M8100 Disc Brakes