1991 Audi Quattro Coupe Bolt Pattern

Bolt Pattern
4x108mm = 4x4.25 inches
Tire Sizes
205/60R15 = 24.7x8.1R15

The 1991 Audi Quattro Coupe 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.