Comparison of tire sizes 245/40 R18 and 255/40 R18
245/40R18
245
Tire width 
40
Profile height 
R18
Tire diameter 
487
RPM per km 245mm98mm653mm2052mm
245
40
18
255
40
18
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 653 | 661 | +8 (+1.2%) | ||
| Width, mm | 245 | 255 | +10 (+4.1%) | ||
| Circumference, mm | 2052 | 2077 | +25 (+1.2%) | ||
| Profile height, mm | 98 | 102 | +4 (+4.1%) | ||
| RPM per km | 487 | 481 | -6 (-1.2%) | ||
| Clearance change, mm | +4 | ||||
| Result: | The diameter differs by 1.2%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 101.2 |
| Difference (km/h) | 1.2 |
Sizes for comparison of tires 245/40 R18
R18
R17 -1
R19 +1
R16 -2
R20 +2
Sizes for comparison of tires 255/40 R18
R18
R17 -1
R19 +1
R16 -2
R20 +2
Ads by size 255/40 R18
6Tires Bridgestone Potenza, 255/40/R18, Used.For sale Summer tires Bridgestone Potenza, 255/40/R18, In stock: 2 pc., Tread depth: 6 mm., Condition: Used. atrodas Juglā.
R1855 €/set17/01/2022Riga
