Shimano XTR BL-M9220 / BR-M9220 Rear Brake Set – 4 Pistons | Postmount | J-Kit | 1700mm

The pinnacle of Enduro, All-Mountain, and E-MTB: Shimano XTR M9220

Shimano's top-of-the-line, race-focused brake set, the XTR M9220 , now offers significantly more powerful, quieter, and more consistent braking performance. Thanks to its advanced 4-piston caliper design , low-viscosity mineral oil, and redesigned SERVO WAVE mechanism, you'll have complete control on both technical climbs and long descents.

This set brings Shimano's latest Di2 logic-based durability and ergonomic improvements to the brakes: faster response, a more natural braking feel, and cleaner cable routing.

Key Features

🔥 Top-Level 4-Piston Power

• Improved braking power thanks to revised piston layout.

• Quiet-operating, vibration-damping brake pad design.

• Including resin pads with cooling fins.

🔥 Faster Power Transfer with the New SERVO WAVE

• Closer pivot point → natural, smooth power modulation via finger movement.

• 5° upward curved arm → more comfortable and safer position for technical landings

• Brake response unaffected by temperature changes.

🔥 Low Viscosity Mineral Oil

• Stable performance over a wide temperature range.

• Bite point remains unchanged even during long descents.

• Faster piston return

🔥 Ultra Durable & Lightweight

• Carbon brake lever

• One-piece aluminum caliper

• Labyrinth + contact seal system → Maximum resistance to dirt and water.

🔥 Assembly and Integration Advantages

• J-Kit : Oiled hose pre-attached to the caliper → much easier assembly.

• I-Spec EV compatible : Integrated gear lever, clean cockpit.

• Post Mount compatible

• A 1700 mm hose is included for the rear brake (can be shortened).

Technical Specifications

• Usage Area: Enduro, All-Mountain, E-MTB

• Brake Lever: Shimano XTR BL-M9220 (2-finger, carbon)

• Brake Caliper: Shimano XTR BR-M9220 (4 pistons)

• Brake Type: Hydraulic Disc

• Mounting: Post Mount

• Hose: SM-BH90-SBM – 1700 mm

• Brake pads: Resin – with cooling fins

• Oil Type: Shimano LV (Low Viscosity Mineral Oil)

• Arm Adjustment: Tool-free reach adjustment

• Weight: ~325 g (rear, including hose – measured)

• Rotor Compatibility: Shimano RT-CL900 is recommended for best performance.

• Color: Bright gray / silver

Box Contents

• 1 x Shimano XTR BL-M9220 brake lever (right – rear)

• 1× Shimano XTR BR-M9220 4-piston caliper

• 1 x SM-BH90-SBM brake hose (1700 mm – J-Kit pre-connector)

• 1 x Resin-cooled brake pad set (finned)

• 2 x Caliper mounting bolts

• System pre-filled with oil (ready for assembly)
  Note: Rotor and adapter are not included.

Who is it ideal for?

• Enduro/All-Mountain riders who demand top-level braking power.

• E-MTB users (specifically optimized for high weight + high speed)

• Those seeking consistent performance during long and aggressive descents.

• XC/Trail drivers who want quiet braking.