Shimano XT BR-M8100 2-Piston Hydraulic Disc Brake Caliper – Lightweight Post Mount MTB Brake for Front or Rear

Experience next-level stopping power with the Shimano XT BR-M8100 2-Piston Hydraulic Disc Brake Caliper – engineered for precise, responsive braking across all trail conditions. Whether you're riding steep descents, technical singletrack, or flowy terrain, this high-performance caliper delivers unmatched modulation and reliability.

Key Features:

• 2-Piston Hydraulic Design – Opposed pistons reduce leading effect and optimise pad wear for better braking control and smoother feel
• Oversized 22mm Phenolic Pistons – Lightweight, stiff, and thermally insulated for excellent heat management
• Post Mount Compatible – Mounts easily to front or rear wheel setups (adapters not included)
• Forged Caliper Construction – Ultra-lightweight yet rigid design enhances power transfer and stability
• Increased Pad-to-Rotor Clearance – Reduces the chance of rotor rub in muddy or debris-filled riding conditions
• One-Way Bleeding System – Simplifies maintenance and ensures easy, mess-free bleeding
• Mineral Oil Brake Fluid – Non-corrosive and safer to handle than traditional DOT fluids
• Shim-less Mounting Bracket – Allows for fast, accurate installation and adjustment

Includes:

• G05A Resin Brake Pads (without cooling fins) pre-installed
• Compatible with Ice Tech rotors and optional Ice Tech finned pads (resin or sintered) for advanced heat dissipation – lowers brake temps by up to 50°C

Compatible with Gorilla Brakes Pads:

Upgrade your braking performance with premium Gorilla Brakes pads, fully compatible with the Shimano BR-M8100 caliper:

• Factory Racing Disc Brake Pads for Shimano XTR, Deore XT, SLX (2-Piston) – Built for power and precision under pressure.
• Titanium Back Plate Shimano G-Type / J-Type Brake Pads – Ultra-lightweight with extreme heat dissipation.
• Enduro Pro Compounds for Shimano G/J-Type Calipers – XC -  E-bike rated, downhill proven, and trusted by top riders.

Product Details:

• Model: Shimano BR-M8100 XT
• Brake Type: Hydraulic Disc Brake
• Caliper Style: 2-Piston
• Mount Type: Post Mount
• Position: Front or Rear
• Colour: Black
• Discipline: MTB / Flat Bar
• Di2 Compatible: No
• Size: One Size

Why Choose Shimano XT?

Backed by Shimano’s legendary MTB heritage, the BR-M8100 is the go-to upgrade for riders seeking lightweight performance, easy maintenance, and consistent stopping power on every ride.