Shimano s BR-M9220/BL-M9220 XTR 4-Pot Brake Set delivers high-power, trail-ready braking performance with refined control and full on-the-fly adjustability. Built around a lightweight, forged one-piece calliper design and advanced Servo-Wave technology, it ensures fast pad engagement, consistent feel, and stable braking in all conditions. With tool-free reach and free-stroke adjustments, it offers custom setup and exceptional rigidity for aggressive riding.Key Features and Benefits:Servo-Wave short stroke mechanism with SIL-TEC roller: Reduces lever travel while boosting braking force. This provides fast, smooth pad engagement, ideal for technical descents where instant response is critical.Dual-diameter 4-piston design: Balances power and control by combining larger pistons for power with smaller ones for modulation. The result is stable braking under load and improved control during steep or fast sections.Second braced lever contact point: Reinforces the master cylinder and lever connection. This increases overall stiffness and lever responsiveness, giving a more precise braking feel on challenging terrain.Textured forged alloy levers with ergonomic design: Engineered with a 14mm wide, up-swept profile for natural finger placement and grip. This improves comfort and control, especially over long descents.Tool-free reach and free-stroke adjustment: Allows riders to fine-tune lever position and braking feel on the go. This ensures consistent performance tailored to hand size, glove use, or riding style.Use of low-viscosity mineral oil: Maintains fluid stability across temperature changes. This keeps lever stroke consistent and ensures smooth piston movement, vital for braking reliability in varied conditions.The main goal for riders choosing this brake set is confidence on technical trails and enduro courses. Shimano achieves this by combining high stopping power with precise modulation. The forged calliper and Servo-Wave tech allow for responsive braking that adapts to the demands of steep gradients and fast descents. The ergonomic lever design and second contact brace enhance stiffness and lever feel, enabling riders to apply braking force with control and consistency under pressure.Whether tuning your setup or replacing worn parts, this kit gives you everything needed for a high-performance, custom installation. Pair it with Ice Tech rotors in your preferred size and ride with braking you can count on in every trail condition.Kit also contains; Pads, spare olives and insert should you wish to adjust the length of the cuttable hoses. Comes without adapters or rotors.