BUCKLOS BSA 68/73mm Threaded Bottom Bracket for DUB 29mm Crank
BUCKLOS BSA 68/73mm Threaded Bottom Bracket for DUB 29mm Crank
BUCKLOS BSA Threaded Bottom Bracket – 68/73mm Shell | DUB 29mm Crankset Compatible
Upgrade your road bike's drivetrain with the BUCKLOS BSA Threaded Bottom Bracket. Engineered for precision, durability, and a creak-free ride, this bottom bracket is the ideal choice for cyclists who demand high-performance components. Made in Mainland China.
Bottom Bracket Features
- Shell Width: Fits frames with 68mm or 73mm bottom bracket shells — compatible with the most common road and gravel bike standards.
- Threaded Design: BC1.37-inch × 24T L/R threaded connection enhances lateral stability and eliminates annoying creaking sounds during hard efforts.
- Premium Materials: Cold-forged, machined aluminum alloy cups paired with dual-labyrinth bearing covers and precision sealed bearings for long-lasting smooth rotation. Weighs just 74.7g.
- Perfect Fit for DUB Cranks: Designed specifically for 29mm crank spindles, making it a seamless match for SRAM DUB cranksets on road bikes.
Included Wrench Tool Features
- CNC Precision Machined: Crafted from 7075 GB aluminum alloy with CNC engraving and anodic oxidation finish — super lightweight, high-strength, and won't deform or scratch your axle. Fully reusable.
- Compact & Handy: Approx. 19.5 × 6.3 cm (7.6 × 2.5 in), weighing just 83.6g (0.18 lb) — easy to carry in your toolkit or kit bag.
- Professional Installation Tool: Purpose-built for DUB axle installation and removal with maximum torque control.
- Wide Compatibility: Works with 12-slot/24-slot 46mm outer bearing bottom bracket cups. Compatible with SRAM DUB, Race Face Cinch, Zipp Vuma, Rotor BSA 30 (46mm), Hawk Racing BB 3086 (46mm), and more. Note: Does not fit 48mm cups.
Key Specifications
| Brand | BUCKLOS |
| Material | Cold-forged Aluminum Alloy |
| Shell Width | 68mm / 73mm BSA |
| Thread Standard | BC1.37" × 24T (L/R) |
| Spindle Compatibility | 29mm (DUB) |
| BB Weight | ~74.7g |
| Wrench Weight | ~83.6g |
| Suitable Use | Road Bikes, Gravel Bikes |
| Origin | Made in Mainland China |
Why Choose BUCKLOS BSA Bottom Bracket?
Whether you're setting up a new build or replacing a worn-out BB, the BUCKLOS BSA threaded bottom bracket delivers smooth, silent pedaling and a precise fit every time. The included professional-grade wrench tool makes installation and removal straightforward — no special workshop required.
Looking for other cycling and workshop accessories? Check out our High Grade Silicone Grease Lubricant to keep your bearings running smoothly, or explore our Multi-Use Wrenches & Spanner Tools for your repair toolkit.
Learn more: HHS Move Your Way physical activity guidance
Frequently Asked Questions
Q: Is this BUCKLOS BSA bottom bracket compatible with SRAM DUB cranksets?
A: Yes! The BUCKLOS BSA threaded bottom bracket is specifically designed for 29mm spindle cranksets, making it a direct match for SRAM DUB road cranksets. It also fits other brands with a 29mm spindle and a BSA 68/73mm threaded shell.
Q: Does this bottom bracket come with an installation tool?
A: Yes — the package includes a CNC-machined 7075 aluminum alloy wrench tool designed specifically for DUB axle installation and removal. It is compatible with 12-slot and 24-slot 46mm outer diameter bottom bracket cups (note: not for 48mm cups).
Q: Will this BB fit my frame's shell width?
A: This bottom bracket is compatible with frames featuring 68mm or 73mm BSA threaded bottom bracket shells — the two most common standards for road and gravel bikes. If your frame uses a press-fit or other shell standard, this BSA threaded version would not be compatible.
Q: What material is the BUCKLOS bottom bracket made from?
A: The cups are made from cold-forged machined aluminum alloy with dual-labyrinth bearing covers and precision sealed bearings, offering an excellent balance of low weight (~74.7g) and long-term durability.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.