Core4 Anti-Fatigue Wheel Spacers – BMW 5×120

MSW’s Take: These are an extremely high quality and well thought out design.  We ran the prototypes of these wheel spacers on our #147 WRL endurance race E46 for half a season and never had an issue with wheels loosening or having a problem with stuck spacers.

WHY ANTI-FATIGUE? 

• Never worry about wheel center-bore chamfer interference due to manufacturing differences of wheel brands. Interference at the center can stress wheel studs significantly.
• The mating surfaces of the spacers ensures the that the center of the wheel stud clamping pressure is outside the wheel bolt circle – i.e.- increases friction leverage to resist shear loads (braking, engine torque, corner weight, etc.) from being imparted onto the wheel studs (BAD!). 
• Hub-centric for OEM wheel alignment with the rotation axis of the wheel hub/bearing (except 5mm which is thin enough to keep the wheel hub hub-centric feature)

FEATURES:

• 6061-T651 Aluminum Alloy
• Mating surfaces held to 0.001in (0.025mm) or less parallelism and flatness
• Pry notches along the OD on both sides for easy removal from hub or wheel
• Lightweight design
• Type II Black Anodized finish to prevent aluminum oxidation (white powdery build-up)

Sold as Pairs

Note on returns: Wheel spacers removed from their original packaging are not eligible for return, refund, or exchange.