Comparison of tire sizes 165/80 R13 and 165/70 R14

165/80R13
165 Tire width
80 Profile height
R13 Tire diameter
536 RPM per km
165mm132mm594mm1867mm
165
80
13
165
70
14
Parameters Sizes Old New
Diameter, mm594587-7 (-1.2%)
Width, mm1651650 (0%)
Circumference, mm18671843-24 (-1.3%)
Profile height, mm132116-16 (-12.1%)
RPM per km536543+7 (+1.3%)
Clearance change, mm-4
Result:
The diameter differs by -1.2%.
Speedometer reading (km/h)
Real speed (km/h)98.7
Difference (km/h)-1.3

Sizes for comparison of tires 165/80 R13

R13
R14 +1
R15 +2

Sizes for comparison of tires 165/70 R14

R14
R13 -1
R15 +1
R16 +2