An adapter for 51mm diameter BMX bottom brackets is now available, allowing riders to use BSA or cartridge square taper bottom brackets on their BMX bikes. The adapter is manufactured with high precision, ensuring no change in the bike’s chainline, even compared to a straight BSA or square taper bottom bracket.
The ADTBB-51 model adapter also features auto-aligning technology. This in-house developed technology speeds up the process of installing the adapter on a BMX bike by providing better tolerance when bolting.
Product Specifications
Suitable For: BMX With Bottom Bracket Hole With Inner Diameter 51mm
Suitable Bottom Brackets: BSA, Cartridge Square Taper
Material: Aluminum Alloy, CNC Machined
Further Information
The bottom bracket in the picture is for illustration purposes only and is not included in the purchase of the ADTBB-51 adapter.
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Shopee Taiwan
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Where can i buy this ?
You can get our products via our network of dealers and resellers. To locate the nearest store in your city or town, simply click the link provided below.
Innovation, since day one
Since our inception in 2008, we strive to make better products that can be depended on. Starting with our CAD technology. Our headsets remove unnecessary clamping to fork axle while providing identical performance. We are also one of the first to sell convertable hubs in Indonesia.


Focus on the details
We obsessively focus on the details. Improving by the millimeter. Adding the stiffness of our hubs by widening the flange of our hubs, thus increasing wheelset stability and strength.