CarSpecsHQ

285/30R22 vs 285/35R22

285/35R22 is outside the ±3% rule as a replacement for 285/30R22: the diameter differs by +3.91%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.

22" rim
285/30R22 28.73" · 285/35R22 29.85" · drawn to scale

Side by side

285/30R22285/35R22Difference
Overall diameter28.73"29.85"+1.12" (+3.91%)
Section width285 mm285 mm0 mm
Sidewall3.37"3.93"+0.56"
Rim22"22"same
Circumference90.3"93.8"+3.5"
Revs per mile702676-26
Ride height——+0.56"
Speedometer reads 60 mph60.062.3+2.3 mph

Speedometer and odometer

020406080100120 reads 60 · actual 62.3 mph

With 285/35R22 on a car calibrated for 285/30R22, the speedometer reads 57.7 mph when you're really doing 60, and the odometer under-counts by 3.9%.

Speedo showsActual speed
30 mph31.2 mph
45 mph46.8 mph
60 mph62.3 mph
70 mph72.7 mph
80 mph83.1 mph

Other sizes close to 285/30R22

Questions

Can I replace 285/30R22 with 285/35R22?

285/35R22 is outside the ±3% rule as a replacement for 285/30R22: the diameter differs by +3.91%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.

What's the difference between 285/30R22 and 285/35R22?

285/35R22 is 1.12" taller and 0 mm wider; the sidewall is +0.56". At an indicated 60 mph you'd actually be doing 62.3 mph.

Will 285/35R22 fit on 285/30R22 wheels?

Both use a 22" rim, so the wheel diameter matches; check the wheel's width range for a 285 mm tire and the fender clearance.