Comparison of tire sizes 155/80 R13 and 175/70 R13
155/80R13
155
Tire width 
80
Profile height 
R13
Tire diameter 
551
RPM per km 155mm124mm578mm1816mm
155
80
13
175
70
13
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 578 | 575 | -3 (-0.5%) | ||
| Width, mm | 155 | 175 | +20 (+12.9%) | ||
| Circumference, mm | 1816 | 1807 | -9 (-0.5%) | ||
| Profile height, mm | 124 | 123 | -1 (-0.8%) | ||
| RPM per km | 551 | 553 | +2 (+0.4%) | ||
| Clearance change, mm | -2 | ||||
| Result: | The diameter differs by -0.5%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 99.5 |
| Difference (km/h) | -0.5 |
Sizes for comparison of tires 155/80 R13
R13
R14 +1
R15 +2
Sizes for comparison of tires 175/70 R13
R13
R14 +1
R15 +2
