325/12R27 Tire Size Specifications
This tire size 325/12R27 fits 0 vehicles in our database.
Everything to know about the 325/12R27 tire size
Size geometry
A 325/12R27 tire has a 325mm section width and a 12% aspect ratio, mounted on a 27-inch rim. Sidewall height works out to 39.0mm (1.54") and overall outside diameter is 763.8mm (30.07"). At highway speed the tire completes about 417 revolutions per kilometre â your speedometer and odometer were calibrated against this number.
Direct substitute sizes
If 325/12R27 is unavailable, the closest same-diameter substitutes on the same rim are 315/12R27 and 335/12R27. 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 325/12R27 you can upsize to 335/8R28 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 315/16R26 (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 325/12R27 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 325/12R27
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