Verified purchaser
Looks good, definatley a worthwhile upgrade for the DA set
Final Few
Final Few
Product Details
Performance & Use Case
The CeramicSpeed BSA Bottom Bracket is the premium upgrade for any BSA English-threaded frameset. CeramicSpeed grade 3 Silicon Nitride ceramic balls deliver markedly lower rolling friction than standard steel bearings - and they keep running smoothly for far longer. For road riders running a threaded frame, it is the upgrade that transforms drivetrain feel without changing the chainset.
Construction & Materials
Each cup is machined from high-grade anodised aluminium and threaded for direct installation into the BSA shell, with grade 3 Silicon Nitride ceramic balls inside hardened races. Coated bearing options add CeramicSpeed's 3-micron metallic surface treatment - races harder than steel, with 60% longer life and 50% lower friction than uncoated.
Compatibility
Fits any BSA English-threaded 68mm frameset. Three spindle-compatibility options cover the major road crankset standards: Shimano Hollowtech II (24mm), SRAM DUB (28.99mm) and Campagnolo Ultra-Torque (25mm). Coated and uncoated bearing options are offered for each spindle type. Select the variant that matches your crankset and your service preference.
Features
- CeramicSpeed grade 3 Silicon Nitride ceramic balls for ultra-low friction
- Hand-built bearings with low-friction polyamide cages and seals
- Anodised aluminium cups threaded for BSA English-threaded framesets
- BSA 68mm shell standard
- Spindle options cover Shimano (24mm), SRAM DUB (28.99mm) and Campagnolo Ultra-Torque (25mm)
- Coated bearings deliver 50% lower drag and 60% longer bearing life
- Drop-in upgrade for any BSA English-threaded frameset
Specifications
- Bottom Bracket Standard
- BSA
- Discipline Compatibility
- Road
- Spindle Diameter
- 24mm, 25mm, DUB
- Threaded / Press Fit
- Threaded
- Bearing Type
- Ceramic
- Bottom Bracket [Maker]
- CeramicSpeed
- Crank Compatibility
- Shimano Hollowtech II, SRAM DUB, campagnolo
- Intended Use
- Performance
- Shell Width
- 68mm
- Sleeved Design
- No
- Thread Direction
- english-bsa
- Product code
- 687173 / 54630838075738
Reviews
4.5
Verified purchaser
Shipping & Returns
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
Q & A
9 questions, 8 answered
Hi I have a 2024 S-Works SL8 that I purchased from you with a Dura-Ace crankset can I just confirm that this will fit it.I intend to have one fitted to my SL8 by your workshop.Thank You
No answers yet.
Hello, I've purchased an S-Work Aethos Frame which I intend to use with Dura-Ace 9200 cranks. Can you confirm this is the bottom bracket is compatible with my intended set up. Thanks in advance.
Hi there, Yes this will work with the setup you want to use, Many thanks Joe W
Will this fit a sworks tarmac sl7 with durace
Hello, Thank you for contacting us at Sigma Sports. Yes, I can confirm that this will be compatible with the Tarmac SL7 and Shimano Dura-Ace crankset. Many thanks, Matt E