-€35.10
Cyclingceramic BSA 24mm for Shimano Dura Ace Ultegra & Rotor Aldhu24
Reduced price:
€149.90
Tax included
BB compatible with BSA frames only.
You can install Shimano, Race Face, Rotor and Sram GXP cranks. Best seller for Shimano cranks ! Compatible with Ultegra R8100, DA 9200 series and previous series.
Rotor cranks available separately: choose Rotor Vegast24 or Aldhu24
Velo-Perso.com expert opinion
“The BSA standard has made a strong comeback on high-end frames (e.g. Specialized Tarmac SL7 / SL8). If you want to keep a Shimano crankset (Ultegra / Dura-Ace) or switch to a Rotor Aldhu24, this bottom bracket is an excellent choice: precise machining, very smooth rotation, and long-term reliability.”
Compatibility & replacement (BSA / Shimano 24 mm)
This bottom bracket is a direct replacement for the following Shimano units (24 mm axle):
- BB-R9100
- BB-R9000
- SM-BBR60
- SM-BB9200
- SM-BB9000
- SM-BB7900
- SM-BB7800
- BB-RS501
- BB-RS500
Real-world setup example
Specialized Tarmac SL7 / SL8 (BSA frame) + Shimano Ultegra / Dura-Ace or Rotor Aldhu24 crankset.
If you are unsure between axle standards (24 / 30 / DUB), Velo-Perso.com can help you choose the correct option and avoid compatibility issues.
If you are unsure between axle standards (24 / 30 / DUB), Velo-Perso.com can help you choose the correct option and avoid compatibility issues.
Also available in other versions (depending on your crankset)
Unboxing & installation video (YouTube)
Watch to learn: BSA compatibility for 24 mm axles (Shimano or Rotor 24 mm).
Pro tip: careful installation (clean threads, proper grease, progressive tightening) improves durability and prevents creaking.
Pro tip: careful installation (clean threads, proper grease, progressive tightening) improves durability and prevents creaking.
Published on: July 25, 2023
Frequently Asked Questions
Is this BSA 24mm bottom bracket compatible with Shimano cranksets?
Yes, this bottom bracket is designed to be compatible with all Shimano cranksets with a 24mm axle, including Ultegra, Dura-Ace, 105, and Aldhu24. It is also compatible with standard BSA frames.
What other crankset brands are compatible with this bottom bracket?
In addition to Shimano, this bottom bracket is compatible with Rotor cranksets with a 24mm axle, as well as some FSA, Race Face, and Sram GXP models (with an adapter).
What are the advantages of this bottom bracket compared to an original Shimano model?
This bottom bracket offers greater durability thanks to its high-quality anodized aluminum and ceramic bearings. It reduces friction, providing better mechanical efficiency and longer lifespan.
Can this bottom bracket be used on Specialized Tarmac SL7 and SL8 bikes?
Yes, this bottom bracket is ideal for Specialized Tarmac SL7 and SL8 frames, allowing you to use Shimano Ultegra, Dura-Ace, or Aldhu24 cranksets while maintaining perfect compatibility with the BSA standard.
Is this model available for other axle standards?
Yes, this bottom bracket is also available in a BSA 30mm version for Rotor 30mm cranksets and a DUB 29mm version for Sram DUB cranksets.
How do I install this bottom bracket?
Installation requires a standard BSA bottom bracket tool. Ensure the frame threads are clean, apply specific grease, and tighten the bottom bracket to the recommended torque (usually between 35 and 50 Nm).
What tool do I need to install this bottom bracket?
To install this bottom bracket, you will need a Shimano bottom bracket tool or a 16-notch, 44mm diameter Shimano disc tool. Examples of compatible tools include VAR BP-98900, Pedros 16x44, and Park Tool BBT 19.2.
What bearings are included in this bottom bracket?
The bottom bracket is equipped with high-quality CyclingCeramic ceramic bearings, optimized for enhanced smoothness and durability.
| Weight (pair, Medium) | 80g |
|---|---|
| Axle | 24mm |
| Material | Aluminum |
| For Frames: | BSA |
| Compatible with the following cranks: | Shimano (Dura Ace/Ultegra + Aldhu24 + 3d24) or Sram GXP (Force, Red, Rival) |
| Bearings | Ceramic (grade 3) |
| Storage location (from where it's shipped to you) | France |
| Manufacturing location | France |
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