Amazon.com : SHIMANO Flat Mount Disc Brake Adapter Front, Flat Caliper to Flat Mount, 140/160Mm : Sports & Outdoors
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Adapter Brake Disc 160mm | Bike Disc Brake Caliper Adapter - Bike Disc Brake Caliper - Aliexpress
Campagnolo Ekar 140/160mm Front Disc Brake Caliper Adapter Flat Mount