Comparison of tire sizes 285/60 R17 and 265/65 R17

285/60R17
285 Tire width
60 Profile height
R17 Tire diameter
411 RPM per km
285mm171mm774mm2431mm
285
60
17
265
65
17
Parameters Sizes Old New
Diameter, mm774776+2 (+0.3%)
Width, mm285265-20 (-7%)
Circumference, mm24312439+8 (+0.3%)
Profile height, mm171172+1 (+0.6%)
RPM per km411410-1 (-0.2%)
Clearance change, mm+1
Result:
The diameter differs by 0.3%.
Speedometer reading (km/h)
Real speed (km/h)100.3
Difference (km/h)0.3

Sizes for comparison of tires 285/60 R17

R17
R16 -1
R18 +1
R15 -2
R19 +2

Sizes for comparison of tires 265/65 R17

R17
R16 -1
R18 +1
R15 -2
R19 +2