Comparison of tire sizes 205/60 R14 and 185/55 R15
205/60R14
205
Tire width 
60
Profile height 
R14
Tire diameter 
529
RPM per km 205mm123mm602mm1890mm
205
60
14
185
55
15
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 602 | 585 | -17 (-2.8%) | ||
| Width, mm | 205 | 185 | -20 (-9.8%) | ||
| Circumference, mm | 1890 | 1836 | -54 (-2.9%) | ||
| Profile height, mm | 123 | 102 | -21 (-17.1%) | ||
| RPM per km | 529 | 545 | +16 (+3%) | ||
| Clearance change, mm | -9 | ||||
| Result: | The diameter differs by -2.8%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 97.1 |
| Difference (km/h) | -2.9 |
Sizes for comparison of tires 205/60 R14
R14
R13 -1
R15 +1
R16 +2
Sizes for comparison of tires 185/55 R15
R15
R14 -1
R16 +1
R13 -2
R17 +2
