The Wheels Manufacturing 46 mm ID Bottom Bracket Spacer Pack provides precision machined aluminum spacers to fine-tune chainline and eliminate drivetrain play across a range of bottom bracket systems with a 46 mm shell diameter.

Crafted from durable, anodized black 6061 aluminum, these spacers are engineered for reliability and precise adjustment.

Specs at a Glance

• Material: 6061 aluminum, black anodized.
• Dimensions: Inside diameter 46.20 mm; outside 52.00 mm.
• Contents: 2 2.5 mm cup spacers and 4 1.0 mm cup spacerstotal of six pieces.

Design Benefits

1. Precise fit and adjustment: Ideal for correcting chainline or bearing preload in PF30, OSBB, 386EVO, 392EVO, BBRIGHT, and similar 46 mm shell systems.
2. Versatile use cases: On GXP cranks, non-drive side spacing moves chainrings inward; for Specialized OSBB frames, spacers can adapt a 61 mm shell to a 68 mm width for broader crank compatibility.
3. Reliable build: Machined from robust aluminum with anodizing for lasting performance.

Final Take

Whether fine-tuning chainline or adapting crank compatibility, the Wheels Manufacturing 46 mm ID Spacer Pack offers precise, durable, and user-friendly adjustments for modern bottom bracket systems.