The Shimano XTR BR-M9120 is a hydraulic disc brake from Shimano, designed for Enduro, Trail, and aggressive MTB riding. Its 4-piston construction offers excellent braking power with a smooth, predictable feel. ICE Technology improves thermal performance for consistent braking on long descents. Combined with the Servo Wave lever (BL-M9120), it achieves top linearity and modulation, providing full control even in technical situations.

Features / Specifications

• Type: Hydraulic Disc Brake (Rear)
• Series: Shimano XTR M9120
• Pistons: 4-piston, high power
• Technology: ICE Tech / ICE Tech Pads, High Power
• Disc compatibility: Shimano RT-MT900, RT-MT800 (Center Lock)
• Cable: 1700 mm (pre-bled, J-Kit)
• Fluid: Shimano Mineral Oil LV (Low Viscosity)
• Use: Enduro, Trail, All-Mountain, Aggressive MTB
• Compatible Lever: BL-M9120
• Weight: 325g (rear brake with cable)

General

• Series: Shimano XTR M9100 Series – BR-M9120
• Type: Hydraulic rear disc brake (Hydraulic Disc Brake – Rear)
• Version: J-Kit (pre-assembled for easy installation)
• Cable: SM-BH90-SBM, length 1700 mm

Power & Performance

• Braking system: 4-piston
• Piston type: Forged twin-bore for optimal pressure distribution
• Power category: High Power (enhanced force on steep gradients)
• Response: Optimal modulation with progressive power increase
• Heat resistance: Compatible with ICE Technology & ICE Tech pads

Materials & Construction

• Body construction: Aluminum
• Finish: Anodized with high durability
• Mount type: Post Mount

Installation

• J-Kit version for easy hose routing through the frame
• Pre-assembled with mineral oil
• Ready for bleeding with One-Way Bleeding

Use

• Category: Enduro, Trail, All-Mountain, Aggressive XC
• Ideal for riders needing: High continuous power, Stability on technical trails, Predictability & control in modulation