Our 6806 open bore adapter is used to press 42×30 sealed bearings. The adapter is machined with one step at 30mm ID, which fits into the center of the sealed bearing. Common bearing size for BB30 frames and bottom brackets.

– Installs: 6806 bearing
– Inner step outer diameter: 29. 9mm
– Outer diameter: 41. 8mm
– Thickness: 7mm
– Thru hole diameter: 0. 387″ (9. 8mm)
– Inner hole sized to fit 1/2″ threaded rod
– Compatible BP0006, BP0007
– Machined, red anodized aluminum
– Sold individually (2 drifts required for some installations)