The Deore BL-M6200 is a hydraulic MTB brake lever built around SERVO WAVE technology, which delivers rapid pad contact and an optimized power curve for strong, controlled braking from the first pull. Low-viscosity oil keeps brake feel stable across a wide range of temperatures. What Our Gearhead(R) Experts Are Saying: "SERVO WAVE brings the pad in fast and builds power progressively. There's a clear window between slowing down and stopping that makes the brake easy to modulate on technical descents without it grabbing."