- T47a (asymmetrical) threaded BB cups for T47a frames and 30mm 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
Specs
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