Race day means no compromises, which is why you depend on Shimano XTR Race Hydraulic Disc Brakes. With a magnesium body, carbon lever, and titanium bolts these brakes are impressively light. They offer loads of power and consistent modulation, while oversize ceramic pistons provide heat regulation, keeping them quiet and preventing brake fade on long descents. One-finger control provides power and modulation as you charge the course. The one-piece aluminum caliper body uses post mounts for ease of installation and adjustment.