Comparison of tire sizes 275/65 R17 and 285/70 R17
275/65R17
275
Tire width 
65
Profile height 
R17
Tire diameter 
403
RPM per km 275mm179mm789mm2480mm
275
65
17
285
70
17
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 789 | 831 | +42 (+5.3%) | ||
| Width, mm | 275 | 285 | +10 (+3.6%) | ||
| Circumference, mm | 2480 | 2610 | +130 (+5.2%) | ||
| Profile height, mm | 179 | 200 | +21 (+11.7%) | ||
| RPM per km | 403 | 383 | -20 (-5%) | ||
| Clearance change, mm | +21 | ||||
| Result: | The diameter differs by 5.3%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 105.2 |
| Difference (km/h) | 5.2 |
Sizes for comparison of tires 275/65 R17
R17
R16 -1
R18 +1
R19 +2
Sizes for comparison of tires 285/70 R17
R17
R16 -1
R18 +1
