SHIMANO F180P/P2 DISC BRAKE MOUNT ADAPTER SM-MA-F180P/P2

Shimano Disc Brake Adaptors are the finest disc brake adaptors available for Shimano disc brakes. Utilizing an extremely stiff aluminum construction, you will achieve your proper brake alignment and optimum function. This adaptor is for mounting a standard Post Mount caliper to a Post Mount fork to use a 180mm disc brake rotor. Use all Shimano brake components for the best braking performance.
Please note: this adaptor is designed for the 160mm native post mount standard. Some newer forks are 180mm native and do not require this adaptor to use a 180mm rotor. Please check your fork before ordering.
Lightweight, Stiff Aluminum Construction
For Post Mount forks with 160mm Post Mount to Post-Mount Calipers for use with 180mm Rotor
Includes mounting bolts and hardware 
Brake Caliper Mount: 74mm Post
For Rotor Diameter: Front 180 mm
Frame/Fork Mount: 74mm, 160mm Post Mount
Caliper Type: 74mm Post Mount
Rotor Size: 180 mm