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
Bonin Post Mount 160 mm To Post Mount 203 mm Disc Brake Caliper Adapter, Black | Bikeinn
140 mm flat mount forks and frames for 160 mm disc brake rotor | SHIMANO BIKE-US