Comparison of tire sizes 265/70 R15 and 235/75 R15
265/70R15
265
Tire width 
70
Profile height 
R15
Tire diameter 
423
RPM per km 265mm186mm752mm2362mm
265
70
15
235
75
15
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 752 | 734 | -18 (-2.4%) | ||
| Width, mm | 265 | 235 | -30 (-11.3%) | ||
| Circumference, mm | 2362 | 2304 | -58 (-2.5%) | ||
| Profile height, mm | 186 | 176 | -10 (-5.4%) | ||
| RPM per km | 423 | 434 | +11 (+2.6%) | ||
| Clearance change, mm | -9 | ||||
| Result: | The diameter differs by -2.4%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 97.5 |
| Difference (km/h) | -2.5 |
Sizes for comparison of tires 265/70 R15
R15
R16 +1
R17 +2
Sizes for comparison of tires 235/75 R15
R15
R16 +1
R17 +2