Shimano XTR, XT Disc Brake Adapter PM 7″ to PM for 203 mm Rotors

XTR, XT disc brake adapter for 203 mm rotors - PM 7" on post mountThe Shimano XTR and XT disc brake adapter PM 7" to PM for 203 mm brake rotors (SM-MA90) is a special adapter for adapting a post mount frame designed for 180 mm rotors to a post mount brake