CarSpecsHQ

225/65R17 vs 255/60R17

255/60R17 is a safe swap for 225/65R17 by the usual ±3% rule: the diameter differs by +1.86%.

17" rim
225/65R17 28.52" · 255/60R17 29.05" · drawn to scale

Side by side

225/65R17255/60R17Difference
Overall diameter28.52"29.05"+0.53" (+1.86%)
Section width225 mm255 mm+30 mm
Sidewall5.76"6.02"+0.27"
Rim17"17"same
Circumference89.6"91.3"+1.7"
Revs per mile707694-13
Ride height——+0.27"
Speedometer reads 60 mph60.061.1+1.1 mph

Speedometer and odometer

020406080100120 reads 60 · actual 61.1 mph

With 255/60R17 on a car calibrated for 225/65R17, the speedometer reads 58.9 mph when you're really doing 60, and the odometer under-counts by 1.9%.

Speedo showsActual speed
30 mph30.6 mph
45 mph45.8 mph
60 mph61.1 mph
70 mph71.3 mph
80 mph81.5 mph

Other sizes close to 225/65R17

Questions

Can I replace 225/65R17 with 255/60R17?

255/60R17 is a safe swap for 225/65R17 by the usual ±3% rule: the diameter differs by +1.86%.

What's the difference between 225/65R17 and 255/60R17?

255/60R17 is 0.53" taller and 30 mm wider; the sidewall is +0.27". At an indicated 60 mph you'd actually be doing 61.1 mph.

Will 255/60R17 fit on 225/65R17 wheels?

Both use a 17" rim, so the wheel diameter matches; check the wheel's width range for a 255 mm tire and the fender clearance.