Box One BMX Disc Brake Adapter (Sliding Dropout)
Box Disc Brake AdapterThe all NEW Box Disc Brake Adapter is designed to help improve braking control on frames where disc brakes were not standard. Compatible with 2 types of dropouts and 3-10mm hubs, in the right configurations, the Box Disc Brake Adapter goes over your hub’s axle and mates with the frame’s dropout, allowing mounting of a standard post mount disc brake caliper.
Please note this product is NOT universally compatible and we strongly recommend reading the Compatibility and Installation instructions for details before purchasing.
This version is compatible with specific sliding plate dropouts with inserts. Please see the compatibility section for more details.
The Box Disc Brake Adapter is NOT compatible with all frames, and purchase/installation requires special attention to your frame’s dropouts for compatibility. We do not recommend composite frames for this adapter.
There are two different versions of the Box Disc Brake Adapter. This version is:
Sliding Plate Dropout - Found on many Thrill, Haro, DK and Stay Strong aluminum frames.
Both variations of the adapter come standard with two adapter rings which makes the adapter compatible with 3 brands of 10mm hubs only. Will not fit hubs with 15/20 or step down axles.