Shimano XTR BR-M9100 Disc Brake Caliper - Front Rear Post Mount 2-Piston Includes Metallic Pads MFPN=00050 } Convertible 6061 aluminum chain

} Convertible 6061 aluminum chain guide with lower (taco) bash guard

O-rings and the flanged bushing design blocks out dirt and mud

6 Stack Height 41 Weight 123 Color Matte Black Material Carbon Length 80 Bar Clamp Diameter (mm) 31

}Surly Stainless Steel Ring 36t x 94mm

Shimano XTR BR-M9100 Disc Brake Caliper - Front Rear Post Mount 2-Piston Includes Metallic Pads MFPN=00050 } Convertible 6061 aluminum chainShimano XTR BR M9100 Disc Brake Caliper Front or Rear Post Mount 2 Piston Includes Metallic Pads. The Shimano XTR M9100 caliper features a MONO BODY design which is machined from a single cold forged block to maximize rigidity and a pair of 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 reduced by 30% compared with BR