Section Width985 mm (38.8")
Aspect Ratio13%
Rim Diameter34"
Overall Diameter1120 mm (44.1")
Sidewall Height128 mm
Circumference3518 mm
985/13R34 — Buy Tires

Everything to know about the 985/13R34 tire size

Size geometry

A 985/13R34 tire has a 985mm section width and a 13% aspect ratio, mounted on a 34-inch rim. Sidewall height works out to 128.1mm (5.04") and overall outside diameter is 1119.7mm (44.08"). At highway speed the tire completes about 284 revolutions per kilometre — your speedometer and odometer were calibrated against this number.

Direct substitute sizes

If 985/13R34 is unavailable, the closest same-diameter substitutes on the same rim are 975/13R34 and 995/13R34. Both keep your speedometer reading within 1% — safe for daily use, ABS, and stability control. Always verify load and speed ratings before swapping.

Plus / minus sizing options

For a 985/13R34 you can upsize to 995/12R35 (plus-one) to fit a larger wheel without changing the speedometer reading, or downsize to 975/14R33 (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 985/13R34 tire size from the factory. Aftermarket fitment depends on rim width, offset, and clearance — match these specs to your wheel before purchasing tires.

Vehicles Using 985/13R34

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