CarSpecsHQ

235/50R17 vs 215/60R17

215/60R17 is outside the ±3% rule as a replacement for 235/50R17: the diameter differs by +3.45%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.

17" rim
235/50R17 26.25" · 215/60R17 27.16" · drawn to scale

Side by side

235/50R17215/60R17Difference
Overall diameter26.25"27.16"+0.91" (+3.45%)
Section width235 mm215 mm-20 mm
Sidewall4.63"5.08"+0.45"
Rim17"17"same
Circumference82.5"85.3"+2.8"
Revs per mile768743-26
Ride height——+0.45"
Speedometer reads 60 mph60.062.1+2.1 mph

Speedometer and odometer

020406080100120 reads 60 · actual 62.1 mph

With 215/60R17 on a car calibrated for 235/50R17, the speedometer reads 58.0 mph when you're really doing 60, and the odometer under-counts by 3.4%.

Speedo showsActual speed
30 mph31.0 mph
45 mph46.6 mph
60 mph62.1 mph
70 mph72.4 mph
80 mph82.8 mph

Other sizes close to 235/50R17

Questions

Can I replace 235/50R17 with 215/60R17?

215/60R17 is outside the ±3% rule as a replacement for 235/50R17: the diameter differs by +3.45%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.

What's the difference between 235/50R17 and 215/60R17?

215/60R17 is 0.91" taller and 20 mm narrower; the sidewall is +0.45". At an indicated 60 mph you'd actually be doing 62.1 mph.

Will 215/60R17 fit on 235/50R17 wheels?

Both use a 17" rim, so the wheel diameter matches; check the wheel's width range for a 215 mm tire and the fender clearance.