Designed to help improve braking control on frames where disc brakes were not standard Designed to help improve braking control on frames where disc brakes were not standard The Box Disc Brake Adapter goes over your hubÌÎÌ__ÌÎÌ__s axle and mates with the frameÌÎÌ__ÌÎÌ__s dropout, allowing mounting of a standard post mount disc brake caliper Available for standard or sliding dropouts with inserts Recommended maximum rider weight 150lbs Compatible with the Box Three Pro disc, Stealth 10mm, and Onyx 10mm disc hubs Standard 10mm Dropouts - Standard dropout configuration, dropout must be between 6-8mm thick, and have a flat inside face Sliding Plate Dropout - Found on many Thrill, Haro, DK and Stay Strong aluminum frames *Please note this product is NOT universally compatible, see boxcomponents.com or your local salesmen for details