Magura QM40 Disc Brake Mount Adapter PM Fork or Frame to PM Caliper, 180mm | eBay
Magura QM40 Adapter | Hi Power Cycles
Not sure which adapter to use with... - MAGURA Components | Facebook
Magura - QM40 Adapter 180mm Rotor (front) or 160mm (rear) Post Mount - SoCal Bike - Oceanside, Carlsbad and north San Diego county's favorite bike shop, Bicycle and ebike rentals, sales, and service
Magura QM40 Adaptor for a 180mm Rotor on 160mm Post Mounts Disc Brake | Worldwide Cyclery