Introducing the T47A ceramic bottom bracket designed to give you the best of the T47 and BBRight bottom bracket standards.

The Asymmetric T47 bottom bracket uses a T47 external cup on the drive side (DS) and T47 internal cup on the non-drive side (NDS).

The T47 Asymmetric bottom bracket standard was introduced on the Factor Ostro VAM and Cervelo R5CX and will fit your favorite crankset on a T47a frame with a 79mm width for Cervelo or a 77.5mm wide bottom bracket shell for Factor.  This difference in width falls well into the adjustment range of any crankset. The same bottom bracket can be used for either.


Seal Options:
Choose road bearings for road bikes
Choose cross bearings for mountain bike, gravel and cyclocross or if you frequently ride your road bike on wet roads.

FITMENT
T47a frames 

SHELL WIDTH
77.5mm or 79mm 

COMPATIBILITY
This bottom bracket will fit almost every crank set with a 30mm diameter spindle with the following exceptions 30mm crank sets specifically built for 68mm wide frames, which are becoming rare. You might still find short spindles in proprietary crank sets, like Cannondale SiSL2 or Specialized FACT crank sets with Quarq Power meters. 

INSTALLATION
The Kogel T47A drive side cup can be installed with Park Tool BBT-79 or any 12-notch bottom bracket tool with a nominal outer diameter of 44mm. The non-drive side cup can be installed with any Enduro Torq-Tite compatible tool.