Comparison of tire sizes 145/80 R13 and 155/70 R13
145/80R13
145
Tire width 
80
Profile height 
R13
Tire diameter 
566
RPM per km 145mm116mm562mm1766mm
145
80
13
155
70
13
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 562 | 547 | -15 (-2.7%) | ||
| Width, mm | 145 | 155 | +10 (+6.9%) | ||
| Circumference, mm | 1766 | 1719 | -47 (-2.7%) | ||
| Profile height, mm | 116 | 109 | -7 (-6%) | ||
| RPM per km | 566 | 582 | +16 (+2.8%) | ||
| Clearance change, mm | -8 | ||||
| Result: | The diameter differs by -2.7%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 97.3 |
| Difference (km/h) | -2.7 |
Sizes for comparison of tires 145/80 R13
R13
R14 +1
R15 +2
Sizes for comparison of tires 155/70 R13
R13
R14 +1
R15 +2
