Amazon.com : Shimano R203P/S Disc Brake Adaptor : Bike Brake Mounts And Adapters : Sports & Outdoors
Upgraded my SHIMANO ROTOR 160mm to 203mm with SHIMANO F203P/P DISC BRAKE ADAPTOR - YouTube
Fox 36 Shimano XT 203mm rotor installation with post to post adapter - Pinkbike Forum
180mm to 203mm rotors. Bought the shimano adapter for 203mm but the rotor won't fit into the caliper. Seems like I need even more of a gap to get the rotor to
SHIMANO 160mm 180mm Brake Rotor Disc Brake Adapter Front Rear Brake Caliper Base Adapter Bike B Post Mount Adapter 51mm A Post