
- T47a (asymmetrical) threaded BB cups for T47a frames and 24mm diameter spindle compatible cranks. Cups have internal bearings, and can be used in BB shells with widths from 77.5 - 79mm. Machined aluminum cups thread together directly into a Cervelo, Factor and Felt T47a BB shell. 
 -  T47 external cup on the drive side
 - T47 internal cup on the non-drive side
 
Attributes
| BB Bearing | ABEC 3 | 
| BB Shell Thread | T47 | 
| BB Shell Width | 77.5-79mm | 
| Crank Spindle Diameter | 24mm | 
| Interface | 24mm | 
| Primary Color | Black |