Rim diameter alone is not enough. The manager needs the full specifications. Photograph the old rim's markings and identify the car.
What rim markings mean
1
7J × 17: width and diameter, inches
2
5 × 114.3: holes and fixing circle
3
ET 45 / DIA 67.1: parameters in mm
What to do, step by step
Find the marking
Markings are often on the inner side of a rim. Check documents or ask the workshop for a photo when the wheel is removed. Do not remove a wheel just for this guide.
Send every specification
Photograph the whole marking. PCD gives bolt-hole count and circle diameter; ET is the mounting-face offset; DIA is the centre-bore diameter.
Check installation before buying
The manager checks sizes against the vehicle, plus load, brake clearance and fixings. The example numbers in the diagram are not approved sizes for your car.
More detail and common mistakes
- Find the existing rim marking and approved dimensions in vehicle documentation. Diameter and width are usually in inches; ET and DIA in millimetres. PCD describes the fixing pattern, not tyre size.
- Compare all parameters together, including load and caliper clearance. A centring ring addresses only permitted centre-bore differences, not an incorrect offset or PCD.
- Confirm bolts or nuts, seat shape and pressure-sensor contents. Send the marking to the manager; installation suitability is checked against the specific rim and vehicle specifications.