Avid/ SRAM 0mm IS Disc Brake Adaptor Fits 160mm Front and 140mm Rear Rotors speed-3sp The Shimano GRX 11-speed rear

The Shimano GRX 11-speed rear derailleur has an integrated chain stabilizer mechanism that provides a quieter experience shifting security and precision on mixed terrain

CNC'd titanium Pulley Wheels Made in San Diego

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Avid/ SRAM 0mm IS Disc Brake Adaptor Fits 160mm Front and 140mm Rear Rotors speed-3sp The Shimano GRX 11-speed rearAvid SRAM 0mm IS Disc Brake Adaptor Fits 160mm Front and 140mm Rear Rotors. Disc Brake Adapters TECH SPECS Brake Caliper Type Post Mount Mount Rotor Size Front IS 160 Rotor Mount Rotor Size Rear IS 140 Rotor