645/41R11 Tire Size Specifications
This tire size 645/41R11 fits 0 vehicles in our database.
Everything to know about the 645/41R11 tire size
Size geometry
A 645/41R11 tire has a 645mm section width and a 41% aspect ratio, mounted on a 11-inch rim. Sidewall height works out to 264.4mm (10.41") and overall outside diameter is 808.3mm (31.82"). At highway speed the tire completes about 394 revolutions per kilometre â your speedometer and odometer were calibrated against this number.
Direct substitute sizes
If 645/41R11 is unavailable, the closest same-diameter substitutes on the same rim are 635/42R11 and 655/40R11. 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 645/41R11 you can upsize to 655/38R12 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 635/44R10 (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 645/41R11 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 645/41R11
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