Elevn developed the 120mm Disc adapter to use smaller disc brake rotors on the Chase ACT & RSP frames with Shimano disc brakes, but on some brake/bike/hub set ups, 120mm won’t clear the frame. Here is the solution !

Designed to be used with any 120mm Disc Brake Adapter bracket to mount 140mm Disc Rotors, like with our 120mm Designed Disc Adapter for the Chase ACT 1.0/1.2, Chase RSP 4.0, & 2020/2021 Chase Element Complete Bikes.
Kit includes +20mm post mount adapter, bolts, and washers.
Black with Laser etched logos.