HSC BB30 Ceramic Adapter Bottom Bracket

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.

ORDERING

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.

*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.