Comparison of tire sizes 155/65 R13 and 135/80 R13
155/65R13
155
Tire width 
65
Profile height 
R13
Tire diameter 
599
RPM per km 155mm101mm532mm1670mm
155
65
13
135
80
13
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 532 | 546 | +14 (+2.6%) | ||
| Width, mm | 155 | 135 | -20 (-12.9%) | ||
| Circumference, mm | 1670 | 1716 | +46 (+2.8%) | ||
| Profile height, mm | 101 | 108 | +7 (+6.9%) | ||
| RPM per km | 599 | 583 | -16 (-2.7%) | ||
| Clearance change, mm | +7 | ||||
| Result: | The diameter differs by 2.6%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 102.8 |
| Difference (km/h) | 2.8 |
Sizes for comparison of tires 155/65 R13
R13
R12 -1
R14 +1
Sizes for comparison of tires 135/80 R13
R13
R14 +1
R15 +2