Golf Mk3
| Design of disc-type wheel |
| 1 - | Wheel rim flange |
| q | Stop for tyre side beading |
| 2 - | Hump (H2) on both shoulders of rim |
| q | Prevents the tyre slipping off the shoulder of the rim while driving through tight bends |
| q | Extended hump (EH2) - prerequisite when using tyres with run-flat properties → Chapter |
| 3 - | Well |
| q | Eases fitting/removal of tyre |
| A - | Width of wheel rim |
| q | Distance between tyre contact surfaces on both rim edges of wheel |
| q | Dimensions in inches |
| B - | Wheel rim diameter |
| q | Distance between tyre contact surfaces on opposite tyre shoulders |
| q | Dimensions in inches |
| C - | Wheel offset |
| q | Vertical distance between centre of wheel and wheel inner contact surface |
| q | Dimensions in mm |
| D - | Pitch circle diameter |
| q | Diameter of circle for wheel bolt holes |
| q | Dimensions in mm |
| E - | Centre hole |
| q | Used to centralize |
| q | Dimensions in mm |
