Shimano R203P/S IS Frame Disc Brake Adaptor 203mm Rotor
This is the Shimano SM-MA Rear 203mm P/S Disc Brake Mount Adapter. Used for 74mm caliper on 51mm frame, using 203mm rotor
This is the Shimano SM-MA Rear 203mm P/S Disc Brake Mount Adapter. Used for 74mm caliper on 51mm frame, using 203mm rotor