Comparison of tire sizes 225/35 R17 and 215/40 R17
225/35R17
225
Tire width 
35
Profile height 
R17
Tire diameter 
540
RPM per km 225mm79mm589mm1851mm
225
35
17
215
40
17
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 589 | 604 | +15 (+2.5%) | ||
| Width, mm | 225 | 215 | -10 (-4.4%) | ||
| Circumference, mm | 1851 | 1897 | +46 (+2.5%) | ||
| Profile height, mm | 79 | 86 | +7 (+8.9%) | ||
| RPM per km | 540 | 527 | -13 (-2.4%) | ||
| Clearance change, mm | +8 | ||||
| Result: | The diameter differs by 2.5%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 102.5 |
| Difference (km/h) | 2.5 |
Sizes for comparison of tires 225/35 R17
R17
R16 -1
R18 +1
R15 -2
Sizes for comparison of tires 215/40 R17
R17
R16 -1
R18 +1
R15 -2