255/42R19 Tire Size Specifications
This tire size 255/42R19 fits 0 vehicles in our database.
Everything to know about the 255/42R19 tire size
Size geometry
A 255/42R19 tire has a 255mm section width and a 42% aspect ratio, mounted on a 19-inch rim. Sidewall height works out to 107.1mm (4.22") and overall outside diameter is 696.8mm (27.43"). At highway speed the tire completes about 457 revolutions per kilometre â your speedometer and odometer were calibrated against this number.
Direct substitute sizes
If 255/42R19 is unavailable, the closest same-diameter substitutes on the same rim are 245/44R19 and 265/40R19. 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 255/42R19 you can upsize to 265/36R20 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 245/49R18 (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 255/42R19 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 255/42R19
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