SHIMANO 160mm 180mm Brake Rotor Disc Brake Adapter Front Rear Brake Caliper Base Adapter Bike B Post Mount Adapter 51mm A Post - AliExpress
SHIMANO Original Disc Brake Adapter PM A pillar Disc Brake Bracket For 180mm 203mm Rotor RT86 RT81 RT56 shimano F180P/P2 F203P/P - AliExpress
Shimano adapter, front/rear, Post Mount, for 203 mm disc - MTBIKER.shop
Which Shimano adapter to change a rear 180mm post mount to a 203mm? | Mountain Bike Reviews 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