What is the largest wheel and tire that I can put on my Fiero?
A. We have experienced the maximum wheel and tire on the front of a Fiero as 17 x 8 with a 45mm offset. This car has 235x40x17 tires. This wheel just touches the lower A-arm in maximum turning and the tire just misses the top of inner fender well at maximum up-wheel travel. This combination keeps the tire inside the front wheel well. On the rear, we have experienced 17 x 9 with a 45mm offset. This car has 255x40x17 tires. This diameter of the wheel is needed to clear the upright on the rear suspension. 16 inch wheels will not clear at 9 inches in width. This combination will keep the tire inside the rear wheel well.