Wheel and wheel rim dimensions

Wheel and rim dimensions are designated in accordance with the examples in the table below.

The car has an approval for the complete vehicle. This means that certain combinations of wheel (wheel rim) and tyre are approved.

Wheels (rims) have a designation of dimensions, for example: 7Jx16x50.

7Rim width in inches
JRim flange profile
16 Rim diameter in inches
50Off-set in mm (distance from wheel centre to wheel contact surface against the hub)