Comparison of tire sizes 235/50 R19 and 255/40 R19

235/50R19
235 Tire width
50 Profile height
R19 Tire diameter
444 RPM per km
235mm118mm718mm2254mm
235
50
19
255
40
19
Parameters Sizes Old New
Diameter, mm718687-31 (-4.3%)
Width, mm235255+20 (+8.5%)
Circumference, mm22542157-97 (-4.3%)
Profile height, mm118102-16 (-13.6%)
RPM per km444464+20 (+4.5%)
Clearance change, mm-16
Result:
The diameter differs by -4.3%.
Speedometer reading (km/h)
Real speed (km/h)95.7
Difference (km/h)-4.3

Sizes for comparison of tires 235/50 R19

R19
R18 -1
R20 +1
R17 -2
R21 +2

Sizes for comparison of tires 255/40 R19

R19
R18 -1
R20 +1
R17 -2
R21 +2

Ads by size 255/40 R19