Shimano XTR Post Mount Adapter - 180mm to 203mm

Genuine Shimano XTR post mount adapter 180-203. Engineered for strength and precision, the Shimano XTR Post Mount Adapter is the perfect choice to upgrade your bike from a 180mm disc brake rotor to a 203mm rotor.  

• SM-MA90 XTR level machined out lightweight disc calliper mount adapter
• For post type disc callipers to be mounted to post type forks with 180 mm mount spacing to fit 203 mm disc rotors