Comparison of tire sizes 225/70 R15 and 225/65 R17
225/70R15
225
Tire width 
70
Profile height 
R15
Tire diameter 
457
RPM per km 225mm158mm696mm2187mm
225
70
15
225
65
17
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 696 | 724 | +28 (+4%) | ||
| Width, mm | 225 | 225 | 0 (0%) | ||
| Circumference, mm | 2187 | 2275 | +88 (+4%) | ||
| Profile height, mm | 158 | 146 | -12 (-7.6%) | ||
| RPM per km | 457 | 439 | -18 (-3.9%) | ||
| Clearance change, mm | +14 | ||||
| Result: | The diameter differs by 4%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 104 |
| Difference (km/h) | 4 |
Sizes for comparison of tires 225/70 R15
R15
R14 -1
R16 +1
R17 +2
Sizes for comparison of tires 225/65 R17
R17
R16 -1
R18 +1
R15 -2
R19 +2