Comparison of tire sizes 165/55 R14 and 135/80 R13

165/55R14
165 Tire width
55 Profile height
R14 Tire diameter
593 RPM per km
165mm91mm537mm1687mm
165
55
14
135
80
13
Parameters Sizes Old New
Diameter, mm537546+9 (+1.7%)
Width, mm165135-30 (-18.2%)
Circumference, mm16871716+29 (+1.7%)
Profile height, mm91108+17 (+18.7%)
RPM per km593583-10 (-1.7%)
Clearance change, mm+5
Result:
The diameter differs by 1.7%.
Speedometer reading (km/h)
Real speed (km/h)101.7
Difference (km/h)1.7

Sizes for comparison of tires 165/55 R14

R14
R13 -1
R15 +1
R12 -2

Sizes for comparison of tires 135/80 R13

R13
R14 +1
R15 +2