105/38R31 Tire Size Specifications
This tire size 105/38R31 fits 0 vehicles in our database.
Everything to know about the 105/38R31 tire size
Size geometry
A 105/38R31 tire has a 105mm section width and a 38% aspect ratio, mounted on a 31-inch rim. Sidewall height works out to 39.9mm (1.57") and overall outside diameter is 867.2mm (34.14"). At highway speed the tire completes about 367 revolutions per kilometre â your speedometer and odometer were calibrated against this number.
Direct substitute sizes
If 105/38R31 is unavailable, the closest same-diameter substitutes on the same rim are 95/42R31 and 115/35R31. Both keep your speedometer reading within 1% â safe for daily use, ABS, and stability control. Always verify load and speed ratings before swapping.
Plus / minus sizing options
For a 105/38R31 you can upsize to 115/24R32 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 95/55R30 (minus-one) for a softer ride or winter setup. Both stay inside the Âą3% diameter tolerance that ABS and TPMS systems expect.
Vehicle compatibility
0 vehicles in our database run the 105/38R31 tire size from the factory. Aftermarket fitment depends on rim width, offset, and clearance â match these specs to your wheel before purchasing tires.
Vehicles Using 105/38R31
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