Comparison of tire sizes 265/45 R21 and 275/45 R22
265/45R21
265
Tire width 
45
Profile height 
R21
Tire diameter 
412
RPM per km 265mm119mm772mm2425mm
265
45
21
275
45
22
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 772 | 806 | +34 (+4.4%) | ||
| Width, mm | 265 | 275 | +10 (+3.8%) | ||
| Circumference, mm | 2425 | 2533 | +108 (+4.5%) | ||
| Profile height, mm | 119 | 124 | +5 (+4.2%) | ||
| RPM per km | 412 | 395 | -17 (-4.1%) | ||
| Clearance change, mm | +17 | ||||
| Result: | The diameter differs by 4.4%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 104.5 |
| Difference (km/h) | 4.5 |
Sizes for comparison of tires 265/45 R21
R21
R20 -1
R22 +1
R19 -2
Sizes for comparison of tires 275/45 R22
R22
R21 -1
R20 -2
