Comparison of tire sizes 165/70 R13 and 145/80 R13
165/70R13
165
Tire width 
70
Profile height 
R13
Tire diameter 
567
RPM per km 165mm115mm561mm1763mm
165
70
13
145
80
13
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 561 | 562 | +1 (+0.2%) | ||
| Width, mm | 165 | 145 | -20 (-12.1%) | ||
| Circumference, mm | 1763 | 1766 | +3 (+0.2%) | ||
| Profile height, mm | 115 | 116 | +1 (+0.9%) | ||
| RPM per km | 567 | 566 | -1 (-0.2%) | ||
| Clearance change, mm | +1 | ||||
| Result: | The diameter differs by 0.2%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 100.2 |
| Difference (km/h) | 0.2 |
Sizes for comparison of tires 165/70 R13
R13
R14 +1
R15 +2
Sizes for comparison of tires 145/80 R13
R13
R14 +1
R15 +2
