Comparison of tire sizes 155/65 R14 and 155/65 R13
155/65R14
155
Tire width 
65
Profile height 
R14
Tire diameter 
571
RPM per km 155mm101mm557mm1750mm
155
65
14
155
65
13
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 557 | 532 | -25 (-4.5%) | ||
| Width, mm | 155 | 155 | 0 (0%) | ||
| Circumference, mm | 1750 | 1670 | -80 (-4.6%) | ||
| Profile height, mm | 101 | 101 | 0 (0%) | ||
| RPM per km | 571 | 599 | +28 (+4.9%) | ||
| Clearance change, mm | -13 | ||||
| Result: | The diameter differs by -4.5%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 95.4 |
| Difference (km/h) | -4.6 |
Sizes for comparison of tires 155/65 R14
R14
R13 -1
R15 +1
R16 +2
Sizes for comparison of tires 155/65 R13
R13
R12 -1
R14 +1