Our BB30-OUT open bore adapter, also referred to as a drift, is used to press BB30-OUT cups in to your frame. The adapter is machined with two steps: one at 24mm OD slips in to the center of the sealed bearing, and a larger step at 42mm OD to fit the frame's BB shell.
- Inner hole sized to fit 3/8" threaded rod
- Machined, anodized gray aluminum
- Compatible with PRESS-1 or PRESS-4 handles
- Sold individually (2 drifts required for some installations)