Shimano XTR BR-M9120 Disc Brake Caliper - Front or Rear, Post Mount, 4-Piston
The XTR M9120 caliper features a MONO-BODY design which is machined from a single cold forged block to maximize rigidity and four ceramic pistons for perfect, Rider-Tuned stopping power. Higher braking force with reduced input force at finger tips delivers a high linear response, and braking power, stroke Time lag...