The Adapter is not compatible with all frames and requires special attention to your frame’s dropouts for compatibility. There are two different versions of the Box Disc Brake Adapter.
3/8"ths / 10mm Dropouts - Dropout must be between 3-6mm thick.
Sliding Plate Dropout - Specific frames only.
Both variations of the adapter come standard with two adapter rings which makes the adapter compatible with 3 different 10mm hubs only. Will not fit hubs with 15/20 or step down axles.
Box Three Pro Disc (Needs no adapter ring).
Stealth 10mm Disc (Requires S-Spec adapter ring).
Onyx 10mm Disc (Requires O-Spec adapter ring).
Box Three Pro Disc Hub
Box Three Brake Caliper
Box Three 140mm Disc Brake Rotor
ALL Box Brake Levers
Box Linear Brake Cables.
Note: Installation instructions available upon request.
The Box Three Pro Disc Hub is offered with or without a disc. Made of a 6061-T6 aluminum hubshell and containing a 6-bolt rotor, this pro disc hub offers 4 pawls 120 points of engagement, made for speed. Weighing roughly under 445g which includes the disc, this pro disc hub is ideal for racing.
Box Three Pro Disc
Box Three Pro Non-Disc
6061 T6 Aluminum Hubshell
4 pawls 120 points of engagement
Includes lock ring, cassette spacer, and 16t cog
435g with bolts
Box Three Pro Front
270g with bolts
The Box Three BMX Disc Brake Caliper is here! With a post mount standard brake mount interface made of aluminum, this disc brake caliper is all you need to improve control. Weighing only 130 grams, this lightweight disc brake caliper will help you focus on the finish line.
The Box Three BMX Specific 140mm Rotor offers a single piece construction with a lightweight vented design. With a 6-bolt interface and made from stainless steel, this rotor will pair perfectly with the Box Disc Brake Adaptors and Calipers.
Box One Genius brake levers are the first ever to incorporate a clamp for ODI® Lock-On® grips. This ensures that your grips stay put while eliminating the need for an extra clamp. At roughly 50 grams, these cold forged and CNC-machined levers beat any other on the market. Genius levers have a built in return spring and are fully compatible with carbon handlebars. The Mid reach lever features a new design that puts it in the same reach position as the Long, but with a more BMX-specific blade for better one-finger leverage. Other features include adjustable reach, a titanium mounting bolt and stainless steel hardware. Genius levers are designed to work with linear-pull brakes and are excellent for BMX, mountain, city, urban and tandem flat-bar bicycles.