Comparison of tire sizes 235/35 R19 and 225/35 R20
235/35R19
235
Tire width 
35
Profile height 
R19
Tire diameter 
492
RPM per km 235mm82mm647mm2033mm
235
35
19
225
35
20
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 647 | 666 | +19 (+2.9%) | ||
| Width, mm | 235 | 225 | -10 (-4.3%) | ||
| Circumference, mm | 2033 | 2091 | +58 (+2.9%) | ||
| Profile height, mm | 82 | 79 | -3 (-3.7%) | ||
| RPM per km | 492 | 478 | -14 (-2.8%) | ||
| Clearance change, mm | +10 | ||||
| Result: | The diameter differs by 2.9%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 102.9 |
| Difference (km/h) | 2.9 |
Sizes for comparison of tires 235/35 R19
R19
R18 -1
R20 +1
R17 -2
Sizes for comparison of tires 225/35 R20
R20
R19 -1
R21 +1
R18 -2