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285/65R16 vs 265/65R17 tire size

265/65R17 vs 285/65R16, diameter

Same diameter

Speedometer
60.0 mph
At a true 60 mph
Diameter
30.56 in
Was 30.59 in
Revs per mile
660
Was 659
3% guideline
Within

Car built for 285/65R16, now on 265/65R17.

285/65R16 and 265/65R17

285/65R16 vs 265/65R17 tire size
Measure285/65R16265/65R17Difference
Width, mm285265-20
Sidewall, % of width65650
Rim, in1617+1
Section height, in7.296.78-0.51
Diameter, in30.5930.56-0.02 (-0.1%)
Circumference, in96.196.0-0.1
Revs per mile659660+1 (+0.1%)

Fitting 265/65R17 instead of 285/65R16

Within the usual 3% diameter guideline.

  • Needs 17 in wheels.
  • Shorter sidewall: 0.5 in less.

Cars with 285/65R16

Cars with 265/65R17

What this cannot tell you

Diameter within 3% is a common shop guideline, not a maker spec.

Load index, offset and clearance are not in this data.

How values are checked