Comparison of tire sizes 245/45 R19 and 235/45 R19
245/45R19
245
Tire width 
45
Profile height 
R19
Tire diameter 
453
RPM per km 245mm110mm703mm2209mm
245
45
19
235
45
19
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 703 | 694 | -9 (-1.3%) | ||
| Width, mm | 245 | 235 | -10 (-4.1%) | ||
| Circumference, mm | 2209 | 2181 | -28 (-1.3%) | ||
| Profile height, mm | 110 | 106 | -4 (-3.6%) | ||
| RPM per km | 453 | 459 | +6 (+1.3%) | ||
| Clearance change, mm | -5 | ||||
| Result: | The diameter differs by -1.3%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 98.7 |
| Difference (km/h) | -1.3 |
Sizes for comparison of tires 245/45 R19
R19
R18 -1
R20 +1
R17 -2
R21 +2
Sizes for comparison of tires 235/45 R19
R19
R18 -1
R20 +1
R17 -2
R21 +2