The latest standard introduced by Cannondale BB30A is used for its Synapse and CAAD 12 Road frame, and latterly the Supersix EVO2016, with a non standard bottom bracket shell of 73 mm versus commonly 68 mm for road frames. The "A" stands for Asymmetric. BB30A adds 5mm to the non-drive side of the BB shell.
C-Bears housings take into account the 5mm offset
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C-Bear PF30A Cannondale Super Six Evo Slice ROTOR 30mm
Compatibility with all ROTOR 30mm axle cranks including Inpower. Illiminates need for the 11mm spacers. Bearings in housing close to cranks illimantes creaks.
Rotor 3D+3DFRex 1Rex 2
Cannondale:Super Six EVO 2016Slice 2015 onwardsSuper X 2017.
For Hollowgram 30mm axle cranksets use the PF30-r ...
Compatibility with Cannondale BB30A asymetric Bottom brackets or standard BB30 housings. BB30 is 42mm Aperture, but instead of pushing the BB30 bearings directly into the frame, bearings fitted into the aluminium housing are pressed into the frame to illiminate creaking to ensure the perfiect alignm...