Comparison of tire sizes 135/80 R13 and 175/60 R13

135/80R13
135 Tire width
80 Profile height
R13 Tire diameter
583 RPM per km
135mm108mm546mm1716mm
135
80
13
175
60
13
Parameters Sizes Old New
Diameter, mm546540-6 (-1.1%)
Width, mm135175+40 (+29.6%)
Circumference, mm17161697-19 (-1.1%)
Profile height, mm108105-3 (-2.8%)
RPM per km583589+6 (+1%)
Clearance change, mm-3
Result:
The diameter differs by -1.1%.
Speedometer reading (km/h)
Real speed (km/h)98.9
Difference (km/h)-1.1

Sizes for comparison of tires 135/80 R13

R13
R14 +1
R15 +2

Sizes for comparison of tires 175/60 R13

R13
R12 -1
R14 +1
R15 +2