Shimano R180S/S Disc Brake Adaptor for 180mm Rotor, 51mm Caliper, 51mm Frame

Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork.

• For 51mm caliper on 51mm frame using 180mm rotor
• Includes mounting hardware

• Brake Caliper Type: IS
• Mount | Rotor Size: Rear IS | 180 Rotor