Wheels Manufacturing's 2437 open bore adapter is used to press 24x37 sealed bearings in to Shimano compatible bottom bracket cups, and direct fit frames like Trek BB90. The adapter is machined with one step at 24mm OD, which fits in to the center of the sealed bearing. Features: Use with 24x37x7 bearing Outer Diameter: 37mm Inner Step Diameter: 24mm Inner hole sized to fit 3/8" threaded rod Compatible with PRESS-1 or PRESS-4 handles Machined, anodized red aluminum Sold individually
