Car Culture HQ
Automotive Wiki

Tires & Wheels

Wheel Spacer

A disc that pushes the wheel outward from the hub for fitment or track width.

Definition

Hub-centric spacers maintain load on the hub bore rather than only on lugs.

Excessive spacing increases stress on wheel bearings.

Related terms

  • Tire CompoundThe rubber formulation determining grip, wear, and temperature range.
  • Wheel OffsetThe distance from the wheel mounting surface to the centerline of the rim.
  • Wheel BackspacingThe distance from the mounting surface to the inner edge of the rim.
  • Plus SizingMounting larger-diameter wheels with lower-profile tires while maintaining overa
  • Tire PressureInflation pressure affecting contact patch, heat buildup, and wear.
  • Treadwear RatingA UTQG number estimating tire life relative to a reference test tire.

Category: Tires & Wheels · Updated August 31, 2026