1990 Audi 100 Base Model Bolt Pattern

Bolt Pattern
4x108mm = 4x4.25 inches
Tire Sizes
Option 1
185/70R14 = 24.2x7.3R14
Option 2
205/60R15 = 24.7x8.1R15

The 1990 Audi 100 Base Model bolt pattern is 4-108 mm. This means there are 4 lugs and the diameter of the circle that the lugs make up measures 108 mm or 4.25 inches across. To get a close measurement of your 4 lug bolt pattern without a bolt pattern tool you should measure from the center of one lug to the center of the lug across from it.