155/74R20 Tire Size Specifications
This tire size 155/74R20 fits 0 vehicles in our database.
Everything to know about the 155/74R20 tire size
Size geometry
A 155/74R20 tire has a 155mm section width and a 74% aspect ratio, mounted on a 20-inch rim. Sidewall height works out to 114.7mm (4.52") and overall outside diameter is 737.4mm (29.03"). At highway speed the tire completes about 432 revolutions per kilometre â your speedometer and odometer were calibrated against this number.
Direct substitute sizes
If 155/74R20 is unavailable, the closest same-diameter substitutes on the same rim are 145/79R20 and 165/70R20. 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 155/74R20 you can upsize to 165/62R21 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 145/88R19 (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 155/74R20 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 155/74R20
tire_size.no_vehicles_found