Token Sram DUB Bottom Bracket - BSA Threaded - Black
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eBayToken Sram DUB Fit Bottom Bracket BSA Threaded (BB29BSA)
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Merlin CyclesToken Black Bb29bsa Bsa Threaded For Sram Dub - / English (Bsa)
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Product Information
Full details
The Token Sram DUB BSA bottom bracket is the ideal upgrade for cyclists running Sram DUB cranksets on frames with traditional 68/73mm BSA threaded shells. It offers a significant boost in drivetrain stiffness and rotational smoothness compared to standard units, thanks to high-grade carbon steel bearings and superior sealing. While it provides excellent longevity, users should ensure they have the correct tools for a threaded installation to avoid damaging the precision-engineered cups.
All features
| Model Part Number | TK-DBB29BSA/2-BKTK |
|---|---|
| Brand | Token |
Extended Product Information
FAQs
Is this compatible with my Shimano crankset?
No, this bottom bracket is specifically designed for Sram DUB cranksets which have a unique 28.99mm spindle diameter.
Does this fit a press-fit frame?
No, this is a BSA threaded bottom bracket intended for frames with threaded bottom bracket shells.
What tools do I need to install this?
You need a standard bottom bracket tool compatible with the specific cup design used by Token for DUB systems.
Can I use this for mountain biking?
Yes, it is suitable for both road and mountain bike frames that utilize a BSA threaded shell.
How often should I service the bearings?
Depending on riding conditions, an inspection every 2,000–3,000 miles is recommended, or sooner if you frequently ride in wet or muddy conditions.
Troubleshooting
Clicking or creaking sound while pedaling
Remove the bottom bracket, clean the threads on the frame and the BB, re-grease, and re-install to the specified torque.
Excessive drag or stiff rotation
Check if the DUB spindle spacers are correctly configured. Over-tightening the crank preload adjuster can also cause bearing drag.
Loosening after installation
Use a torque wrench to ensure the bottom bracket is tightened to the manufacturer's recommended torque specification.
Pros and Cons
Pros
- Significantly reduces drivetrain creaking
- High-quality sealing keeps contaminants out of bearings
- Smooth rotation improves pedaling efficiency
- Lightweight at 105g
- Easy to install on standard BSA threaded frames
Cons
- Requires specific tools for DUB threaded installation
- Not compatible with non-DUB crankset spindles
- Needs periodic maintenance for optimal longevity
Setup, Compatibility & Care
Installation requires a compatible bottom bracket tool designed for Sram DUB threaded cups. Always ensure the bottom bracket shell is clean and free of debris before applying a thin layer of bicycle-specific grease to the threads. Verify the frame shell width is either 68mm or 73mm, as the BB29BSA is designed for these standard BSA dimensions. For care, avoid using high-pressure water spray directly at the seal areas during bike washing, as this can force contaminants past the X-Seal. Every few months, inspect the crankset for any play, and ensure the torque specs recommended by the manufacturer are maintained.