115/312R45 Tire Size Specifications
This tire size 115/312R45 fits 0 vehicles in our database.
Everything to know about the 115/312R45 tire size
Size geometry
A 115/312R45 tire has a 115mm section width and a 312% aspect ratio, mounted on a 45-inch rim. Sidewall height works out to 358.8mm (14.13") and overall outside diameter is 1860.6mm (73.25"). At highway speed the tire completes about 171 revolutions per kilometre â your speedometer and odometer were calibrated against this number.
Direct substitute sizes
If 115/312R45 is unavailable, the closest same-diameter substitutes on the same rim are 105/342R45 and 125/287R45. 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 115/312R45 you can upsize to 125/277R46 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 105/354R44 (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 115/312R45 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 115/312R45
tire_size.no_vehicles_found