Comparison of tire sizes 165/80 R13 and 155/80 R13
165/80R13
165
Tire width 
80
Profile height 
R13
Tire diameter 
536
RPM per km 165mm132mm594mm1867mm
165
80
13
155
80
13
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 594 | 578 | -16 (-2.7%) | ||
| Width, mm | 165 | 155 | -10 (-6.1%) | ||
| Circumference, mm | 1867 | 1816 | -51 (-2.7%) | ||
| Profile height, mm | 132 | 124 | -8 (-6.1%) | ||
| RPM per km | 536 | 551 | +15 (+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 165/80 R13
R13
R14 +1
R15 +2
Sizes for comparison of tires 155/80 R13
R13
R14 +1
R15 +2