BMW 3.0Si Spare Tire Sizes
The BMW 3.0Si has used a 5x120mm bolt pattern for all models from 1973 to 1976 along with a tire diameter of 24.7" tall. Using a temporary spare tire with a diameter close to the standard tire has many benefits, especially for modern vehicle applications. Tire diameter as well as wheel diameter clearance have been taken into account for BMW 3.0Si spare tire selections. In this case, a 125/80R17 temporary spare tire is the recommendation for all applications.