Comparison of tire sizes 135/80 R13 and 155/65 R13
135/80R13
135
Tire width 
80
Profile height 
R13
Tire diameter 
583
RPM per km 135mm108mm546mm1716mm
135
80
13
155
65
13
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 546 | 532 | -14 (-2.6%) | ||
| Width, mm | 135 | 155 | +20 (+14.8%) | ||
| Circumference, mm | 1716 | 1670 | -46 (-2.7%) | ||
| Profile height, mm | 108 | 101 | -7 (-6.5%) | ||
| RPM per km | 583 | 599 | +16 (+2.7%) | ||
| Clearance change, mm | -7 | ||||
| Result: | The diameter differs by -2.6%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 97.3 |
| Difference (km/h) | -2.7 |
Sizes for comparison of tires 135/80 R13
R13
R14 +1
R15 +2
Sizes for comparison of tires 155/65 R13
R13
R12 -1
R14 +1