Product Details
BBB Cycling BBO-39 Bottom Thread BSA Bottom Bracket - Black
Universal BSA bottom bracket for 24mm spindles
There is no better feeling than a smooth rolling bike. A bottom bracket is one of the most important parts to keep your bike smooth and silent. The BottomThread BSA is a high-end bottom bracket. Durable, high-end materials are used to keep your bike rolling forever!
Fully CNC machined external cups. Co-molded bearing shields. Chrome steel 6805 bearings. Wave washer & spacers included. BSA threading: 1.37 x 24T. Fits 24 mm spindle cranksets. Fits 68/73 mm spindle crank sets. Cup tool: 16-notch 44mm OD (BTL-27L). Material: Anodized Black Aluminum.
Category Cartridge
Discipline : E-Bike, Gravel, Mountain, Road, Ti, Touring, Urban
Variant : 68/73mm
What Sets Alchemy Apart
The best pre-owned bikes
When you buy a pre-owned bike from Alchemy Cycle Trader, you’re getting more than just a great deal. Every bike is roadworthy certified, comes with a 3-month warranty, and includes your first service free - so you can ride away with complete confidence.
Buy with confidence
In-house Active Thermography Carbon Fibre Testing for extra peace of mind on pre-owned bikes.
Learn more about our carbon testing.
Expert Servicing & Ongoing Support
Our professional workshop team is here to keep your bike running at its best long after you’ve taken it home. From routine servicing to performance tuning, our qualified mechanics ensure your ride stays smooth, safe, and ready for every adventure. Whether it’s your first free service or future maintenance, you can count on Alchemy Cycle Trader for trusted support and expert care. Learn more about our workshop services.
