Comparison of tire sizes 225/40 R17 and 215/40 R17
225/40R17
225
Tire width 
40
Profile height 
R17
Tire diameter 
520
RPM per km 225mm90mm612mm1922mm
225
40
17
215
40
17
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 612 | 604 | -8 (-1.3%) | ||
| Width, mm | 225 | 215 | -10 (-4.4%) | ||
| Circumference, mm | 1922 | 1897 | -25 (-1.3%) | ||
| Profile height, mm | 90 | 86 | -4 (-4.4%) | ||
| RPM per km | 520 | 527 | +7 (+1.3%) | ||
| Clearance change, mm | -4 | ||||
| Result: | The diameter differs by -1.3%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 98.7 |
| Difference (km/h) | -1.3 |
Sizes for comparison of tires 225/40 R17
R17
R16 -1
R18 +1
R15 -2
R19 +2
Sizes for comparison of tires 215/40 R17
R17
R16 -1
R18 +1
R15 -2
