Comparison
255/45 R18 vs 225/35 R19
Compared to 255/45 R18, 225/35 R19 is 46.6 mm shorter and changes the speedometer reading by -6.79%.
Current Tire
255/45R18
New Tire
225/35R19
255/45 R18
225/35 R19
Ground line · scaled comparison
Not Recommended
Over 5% — speedometer & ABS may misread
Diameter change
-46.6 mm
-6.79%
Speedometer at 100
93.2 km/h
-6.79% error
Ground clearance
-23.3 mm
ride height delta
Sidewall change
-36.0 mm
revs/km: 497.3
Permalink for this comparison:
/compare/255-45-r18-vs-225-35-r19Detailed comparison
| Metric | 255/45 R18 | 225/35 R19 | Difference |
|---|---|---|---|
| Overall diameter | 686.7 mm | 640.1 mm | -46.6 mm (-6.79%) |
| Sidewall height | 114.8 mm | 78.8 mm | -36.0 mm |
| Circumference | 2.157 m | 2.011 m | -146.4 mm |
| Revs / km | 463.5 | 497.3 | +33.7 |
| Ground clearance | reference | -23.3 mm | -23.3 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 93.2 km/h | -6.79 km/h |
Verdict: danger
Over 5% diameter difference — likely to affect speedometer accuracy, ABS calibration and gearing. Not recommended without professional review.
Back to
255/45 R18
Back to
225/35 R19