Comparison
255/50 R19 vs 255/35 R20
Compared to 255/50 R19, 255/35 R20 is 51.1 mm shorter and changes the speedometer reading by -6.93%.
Current Tire
255/50R19
New Tire
255/35R20
255/50 R19
255/35 R20
Ground line · scaled comparison
Not Recommended
Over 5% — speedometer & ABS may misread
Diameter change
-51.1 mm
-6.93%
Speedometer at 100
93.1 km/h
-6.93% error
Ground clearance
-25.5 mm
ride height delta
Sidewall change
-38.3 mm
revs/km: 463.7
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/compare/255-50-r19-vs-255-35-r20Detailed comparison
| Metric | 255/50 R19 | 255/35 R20 | Difference |
|---|---|---|---|
| Overall diameter | 737.6 mm | 686.5 mm | -51.1 mm (-6.93%) |
| Sidewall height | 127.5 mm | 89.3 mm | -38.3 mm |
| Circumference | 2.317 m | 2.157 m | -160.5 mm |
| Revs / km | 431.5 | 463.7 | +32.1 |
| Ground clearance | reference | -25.5 mm | -25.5 mm |
| Speedometer @ 100 km/h | 100.0 km/h | 93.1 km/h | -6.93 km/h |
Verdict: danger
Over 5% diameter difference — likely to affect speedometer accuracy, ABS calibration and gearing. Not recommended without professional review.
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255/50 R19
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255/35 R20