BMW wheel style 21

The BMW wheel style 21 is part of bmw’s lineup of original wheel styles.
The bmw Style 21 wheel is available in diameters of 17″ inches, with a bolt pattern of 5×120.
This is the original wheel style for the bmw series E31, E34 and E32, however it might fit other models given the specifications match below with the replacement wheel.The style given to this wheel is best described as M System II.
Notes: *also polished

BMW wheel style 21

BMW wheel style 21 Technical Specifications & Parts 

Series Model Except Size Use ET Kg
5er E34 8×17 * ET 20
5er E34 8×17 * front

ET 20
5er E34 9×17 *


ET 22
7er E32 8×17 front

ET 20
7er E32 9×17


ET 26
8er E31 8×17 * front

ET 10
8er E31 9×17 *


ET 19
BMW models for which the BMW wheel style 21 fits: E34 E32 E31
More images

Will the BMW wheel style 21 fit on your BMW?

Bear in mind that it could be dangerous to run your BMW on tires or wheels they aren’t designed to fit. If you are unsure about your current wheel specifications, please check our BMW wheel fitment chart and guide


Insert your existing BMW wheel and tire dimensions, and the sizes of the BMW wheel style 21, and the outcome will be shown on the diagram. The strut shown in the diagram below is for illustration purpose only.

Existing Tyre
Existing Wheel

Above values are only examples! If unsure of your current wheel size? Check here!

Existing Tyre
Existing Wheel

Above values are only examples! Change values to view fittment.


are automatically applied below

The diagram is only for show to help you visualize your tires and wheel fitment of your new setup.

Tire Width - The width of your tire in millimeters. 195/55ZR15

Tire Profile - The ratio of tire wall width to tire width. 195/55ZR15

Tire Diameter - The diameter of your wheels in inches. 195/55ZR15

Offset - the distance from the center of the wheel to the mounting face in mm. ET20

Rim Width - The width of your rims in inches. 7.5JX17

Inches Original Wheel New Wheel Difference
Diameter %
Circumference %
Sidewall %
Width %
Wheel Revolutions

What is the recommended tire pressure for the BMW wheel style 21?

The tire pressure for the BMW wheel style 21 will depend on your BMW model. Most BMW models like the BMW 5 Series and the BMW 7 Series, have a recommended tire pressure of 32 PSI (2.2 Bar). However, you should always double-check this for your specific BMW model. You can find out the recommended tire pressure for your BMW, by checking the the sticker on the inside edge of the driver’s door or, check your owner’s manual if you still have the same type of tires that came with the vehicle.