HSC BB30 Ceramic Adapter Bottom Bracket
|Availability:||In stock (4)|
HSC's series of high quality, low friction hybrid ceramic bottom brackets include specialized adapter-style bottom brackets to allow fitment of a wide variety of cranksets to a specific bottom bracket shell. These particular adapters are designed for the BB30 standard, which normally uses direct-fit 6806 bearings in a 68mm wide shell. Where bearings would normally press into the 42mm bores of a BB30 shell, these HSC adapters have precisely machined aluminum cups that place the bearings outside of the frame to better fit the longer spindles of the non-BB30 cranks they were designed for. As an added bonus, the wider bearing stance improves drivetrain stiffness for better stability and power transfer.
Advantages over standard steel bearings include: lighter weight, lower thermal expansion and deformation under load, lower friction with reduced start and running torques, and reduced wear for longer running life; put simply, ceramic bearings allow you to roll faster with reduced effort over a longer period before needing replacement.
These adapters are designed to fit frames with 68mm wide BB30 bottom bracket shells. The option you require will depend on the crankset being used:
- Shimano HTII - Adapts a BB30 frame to fit 24mm spindle cranks
- SRAM GXP - Adapts a BB30 frame to fit stepped 24/22mm spindle cranks.
- SRAM DUB - Adapts a BB30 frame to fit SRAM's proprietary DUB design, 29mm spindle crank.
- BB386 EVO - Adapts a BB30 frame to fit 30mm spindle cranksets, sometimes referred to as "long spindle" BB30 cranksets.
- BB30 - designed to fit BB30 30mm spindle cranksets.
|Shell I.D.||42 mm|
|68 mm||73 mm / 83 mm* / 84.5 mm** / 120 mm***|
|Crank Compatibility||Shimano HTII||SRAM GXP||SRAM DUB-R||BB386 / BB30|
|Crank Spindle||24 / 24 mm||24 / 22 mm||29 / 29 mm||30 / 30 mm|
|Material||Aluminum / Si3N4 ceramic hybrid|
|Tools / Installation||Quality bearing press|
*Cannondale MTB / **Spec. MTB Alloy OSBB / ***Cannondale Fat Bike
INSTALLATION / ASSEMBLY
To avoid frame damage, we recommend that these BB30 bottom bracket adapters be professionally installed using a proper bearing press.
Please feel free to contact us directly for technical questions.