Our on-line store is open 24/7 and we ship Monday through Friday, excluding some holidays. Orders received for products without shipping restrictions on its product page will ship the same business day when received before 12:00 p.m. PST. Orders in high demand will have an estimated production time listed on its product page and will ship according to the date listed.
Employing Shimano’s legendary mountain bike braking technology, Deore XT M8100 increases brake rigidity for greater bike control and optimizes braking performance for different riding styles
•Pre-bled system with brake lever, 4-piston brake caliper, and brake hose
•Brake Lever:
•Intuitive and versatile braking keeps your focus on the trail
•High rigidity
•Rider tuned adjustment
•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
•Brake Caliper:
•Superior modulation gives you greater control
•High braking power instills greater downhill confidence and control
•Quick and easy assembly
•Quicker Piston retraction
•Reduces disc brake rotor wobbling noise and increases braking power by 10% (vs. M8000)
•Four Piston
•Pad: N04C metal pad w/fins
•Banjo type connection and inside hose routing
•Toolless reach adjust
•Free stroke adjust
•Brake Hose Kit: SM-BH90-SBM
•Compatible Shifting Lever Mount: I-SPEC EV
•Lever Size: 2-finger
•Oil: Shimano Mineral
•Brake Caliper: BR-M8120 4-piston
•J-Kit Technology: For some frames with internal routing, the J-Kit version may be easier to install, since everything is pre-bled. Disconnected lever comes pre-bled with connecting bolt/built in olive pre-installed. Brake caliper is pre-bled with brake hose connected/capped.
We are a Seattle, WA based outdoor gear store with a mission to make climbing, backpacking, skiing & mountaineering accessible and enjoyable for everyone.
© 2026, Master Store