Verified purchaser
Very well made and good value; have used C-Bear ceramic bearings in two bike builds, they perform well and run true and smooth.
Product Details
Performance & Use Case
The C-Bear BB386EVO Ceramic Bottom Bracket is the upgrade for any frameset built around the BB386EVO press-fit standard. Replacing the stock bearings with sealed ceramic units delivers measurably lower rolling resistance through the pedal stroke. For road riders chasing efficiency on a wide-shell frame, it is a small upgrade that pays back across every long ride.
Construction & Materials
Each cup is CNC machined from solid aluminium to the precision tolerances the BB386EVO standard demands, then paired with a sealed C-Bear ceramic bearing. The ceramic running surfaces are harder and smoother than steel, which means lower rolling friction and a longer service interval than a typical alloy bottom bracket.
Compatibility
Fits any BB386EVO press-fit frameset - 46mm shell diameter, 86.5mm shell width. Two spindle-compatibility options cover Shimano Hollowtech II (24mm) and SRAM DUB (28.99mm) cranksets. Compatible cranks include FSA Mega Exo, Race Face X-Type and Rotor 3D, Agilis, Rex 3 where the spindle diameter aligns. Select the variant that matches your existing crankset.
Features
- C-Bear ceramic bearings deliver lower rolling friction for higher efficiency
- Precision CNC machined aluminium cups for accurate, durable installation
- BB386EVO press-fit standard - 46mm shell diameter, 86.5mm shell width
- Spindle options cover Shimano Hollowtech II (24mm) and SRAM DUB (28.99mm)
- Compatible cranks include FSA Mega Exo, Race Face X-Type, Rotor 3D/Agilis/Rex 3
- Drop-in upgrade for any BB386EVO frameset
- Suitable for road riders prioritising drivetrain efficiency
Specifications
- Bottom Bracket Standard
- BB386
- Discipline Compatibility
- Road
- Spindle Diameter
- 24mm, DUB
- Threaded / Press Fit
- press-fit
- Bearing Type
- Ceramic
- Bottom Bracket [Maker]
- C-Bear
- Crank Compatibility
- Shimano Hollowtech II, SRAM DUB
- Family
- BB386EVO
- Intended Use
- Performance
- Shell Width
- 86-5mm
- Sleeved Design
- No
- Product code
- 793900 / 54293035778394
Reviews
4.9
Value of Product
Quality of Product
Verified purchaser
What an upgrade from the standard shimano bb what was in my bike to start with. Super smooth everyone should have this on there bike
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
2 questions answered
Do you need a special tool to tighten the two halves of the BB shells, if so which one?. This BB is for an older (about 10 years) Colnago C60, 46mm x 86mm shell Thanks, Richard
Hi there, This is a Pressfit BB so you will just need a Pressfit BB tool to fit this tot he bike, Many thanks Joe W
Will this fit a trek emonda alr6 86.5 bb
Hi Lee, If your bike is BB86.5 you will need the below, https://www.sigmasports.com/item/C-Bear/Pressfit-BB86-BB92-Ceramic-Bottom-Bracket-for-24mm-axle/MSPO Many thanks Joe W
