275/50R19 vs 275/55R19
275/55R19 is outside the ±3% rule as a replacement for 275/50R19: the diameter differs by +3.63%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.
Speedometer and odometer
With 275/55R19 on a car calibrated for 275/50R19, the speedometer reads 57.9 mph when you're really doing 60, and the odometer under-counts by 3.6%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 31.1 mph |
| 45 mph | 46.6 mph |
| 60 mph | 62.2 mph |
| 70 mph | 72.5 mph |
| 80 mph | 82.9 mph |
Other sizes close to 275/50R19
- 275/50R19 vs 235/55R19-2.18%
- 275/50R19 vs 255/50R19-2.64%
- 275/50R19 vs 245/60R18-0.84%
- 275/50R19 vs 255/50R20+0.71%
- 275/50R19 vs 235/65R18+0.67%
- 275/50R19 vs 245/50R20-0.61%
- 275/50R19 vs 275/45R20-0.28%
- 275/50R19 vs 225/55R19-3.63%
- 275/50R19 vs 245/55R19-0.73%
- 275/50R19 vs 255/55R19+0.73%
- 275/50R19 vs 255/60R19+4.09%
- 275/50R19 vs 265/50R19-1.32%
Questions
Can I replace 275/50R19 with 275/55R19?
275/55R19 is outside the ±3% rule as a replacement for 275/50R19: the diameter differs by +3.63%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.
What's the difference between 275/50R19 and 275/55R19?
275/55R19 is 1.08" taller and 0 mm wider; the sidewall is +0.54". At an indicated 60 mph you'd actually be doing 62.2 mph.
Will 275/55R19 fit on 275/50R19 wheels?
Both use a 19" rim, so the wheel diameter matches; check the wheel's width range for a 275 mm tire and the fender clearance.