Shimano R203S/P Disc Brake Adaptor for 203mm Rotor, 51mm Caliper, 74mm Frame

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

• For 51mm caliper on 74mm frame using 203mm rotor
• Includes mounting hardware

• Brake Caliper Type: IS
• Mount | Rotor Size: 180 Post | 203 Rotor