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GVR-4 Wheel Width Guide
Maximum and Minimum Tire Width for a Given Wheel Width
Min Tire Width
Max Tire Width
Wheel width should run between 70% and 100% of the tread width. The closer
to 100%, the more vertical the sidewall of the tire and the better the tire
should handle. Some very short and stiff sidewall tires may work acceptably well
at the lower percentages.
All of the data was compiled by Mark Rieb who is an esteemed member on GalantVR4.org.