Shimano SM-RT54-SI Disc Brake Rotor - 160mm Center Lock For Resin Pads Only Internal Spline Lockring Model=GCX Chainguide A wireless XTR upgrade kit

A wireless XTR upgrade kit designed for trail dominance and configured for bolt-on compatibility

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Brake Pads

Shimano SM-RT54-SI Disc Brake Rotor - 160mm Center Lock For Resin Pads Only Internal Spline Lockring Model=GCX Chainguide A wireless XTR upgrade kitShimano SM RT54 SI Disc Brake Rotor 160mm Center Lock For Resin Pads Only Internal Spline Lockring. The Shimano SM RT54 disc brake rotors provide exceptional stopping power in all riding conditions. Shimanos Center Lock mounting system makes installing and removing rotors quick and easy thanks to the spine mount and lock ring design. For use with resin pads only Center Lock lockring design offers fast and easy installation TECH SPECS Rotor Size (mm)