Comparison of tire sizes 235/85 R16 and 265/65 R17
235/85R16
235
Tire width 
85
Profile height 
R16
Tire diameter 
395
RPM per km 235mm200mm806mm2532mm
235
85
16
265
65
17
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 806 | 776 | -30 (-3.7%) | ||
| Width, mm | 235 | 265 | +30 (+12.8%) | ||
| Circumference, mm | 2532 | 2439 | -93 (-3.7%) | ||
| Profile height, mm | 200 | 172 | -28 (-14%) | ||
| RPM per km | 395 | 410 | +15 (+3.8%) | ||
| Clearance change, mm | -15 | ||||
| Result: | The diameter differs by -3.7%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 96.3 |
| Difference (km/h) | -3.7 |
Sizes for comparison of tires 235/85 R16
R16
R17 +1
R18 +2
Sizes for comparison of tires 265/65 R17
R17
R16 -1
R18 +1
R15 -2
R19 +2
