SOURCE-LINKED REGULATION GUIDE

UN R124 — Replacement wheels

Review manufacture and vehicle-fitment requirements for replacement wheels.

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What does it cover?

UN R124 covers new replacement wheels intended for the defined vehicle categories. This version distinguishes them from original-equipment wheels, replacement wheels supplied by the vehicle manufacturer and special wheels subject to national approval. It includes both manufacturing and fitment requirements, so identifying the product’s wheel category comes first.

Who is it for?

Wheel manufacturers, aftermarket-parts suppliers and vehicle-compatibility teams.

Which subjects are addressed?

  • New replacement wheels
  • Distinction from original equipment
  • Special-wheel exception
  • Manufacturing and fitment requirements

Common question

Does R124 cover every new wheel?

No. The scope distinguishes original equipment, vehicle-manufacturer replacement wheels and special wheels. The text also specifies an exception concerning the fixing arrangement.

Source documents and references

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