Wheels Manufacturing 2437 Open Bore Adapter For Half Inch Rod

Our 2437 open bore adapter is used to press 24x37 sealed bearings into bottom bracket cups, and direct fit frames like trek BB90. The adapter is machined with one step at 24mm ID, which fits into the center of the sealed bearing. - Installs: 24x37 bearing - Inner step outer diameter: 23. 8mm - Outer diameter: 36. 8mm - Thru hole diameter: 0. 387" (9. 8mm) - Inner hole sized to fit 1/2" threaded rod - Compatible with BP0006, BP0007 - Machined, red anodized aluminum - Sold individually (2 drifts required for some installations)