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Are Wheel Spacers Legal in the US?

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Wheel spacers are legal in the US if they are fitted safely and the tires stay covered by the fenders. Some states limit how far the tires may stick out past the bodywork, so a very aggressive setup can be non-compliant.

Why?

Spacers push the wheels outward for clearance or stance, and they are legal to use. The safety expectation is that they are hub-centric and correctly torqued so the wheel stays centered and secure.

The legal limit is coverage. Many states require the tires to be covered by the fenders or by flares, and some cap how far a tire may protrude beyond the body. A spacer setup that pushes the tires out past the fender line can fail those rules, which is where fender flares often come in.

So spacers themselves are road-legal; the question is whether the resulting track width keeps the tires covered and within your state's protrusion rules, and whether the install is done safely.

What decides if it's legal

  • The tires must stay covered by the fenders (fender-coverage rules vary by state).
  • Spacers must be hub-centric and properly torqued for safety.
  • Wheels and tires must not rub or protrude dangerously.
  • Some states limit how far tires may stick out past the body.

Does it depend on your state?

Yes. Fender-coverage and tire-protrusion rules are set by state, so the same spacer width can be legal in one state and too far in another. Safe, hub-centric fitting is expected everywhere.

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Sources

This page is general guidance, not legal advice, on the rules in the US for wheel spacers. The detail varies by exact vehicle and changes over time - confirm with your insurer and the EPA, NHTSA and your state DMV before modifying.