Silent. Speed. Performance.
To eliminate creaking, all C-Bear Bottom Brackets are CNC-machined from high-grade aluminium for a precision fit in your frame. C-Bear will help you avoid unnecessary add-ons - adapters, shims, rings, clips, spacers, glue. Just press in and voila: no creak, no play, no noise!
All bearings are fully ceramic for smooth motion, with the aim of maximizing transfer of pedal power to speed. C-Bear offer a wide array of bottom brackets to match the bike frame and crank of YOUR choice!
Introduced by Cannondale, BB30A is used for frames with a non-standard bottom bracket shell width of 73mm (as opposed to 68mm standard for road frames). The "A" stands for Asymmetric - BB30A adds 5mm to the non-drive side of the BB shell, but does not change the pedal stance width of a BB30 BB in most cases.
R = Road ceramic bearing (black seal) less friction,smoother spinning, maximize speed with the same energy.
Still not sure? Decide which BB is right for you in 3 easy steps, using the C-Bear compatibility chart.