235/50R19 vs 265/50R19
265/50R19 is outside the ±3% rule as a replacement for 235/50R19: the diameter differs by +4.18%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.
Speedometer and odometer
With 265/50R19 on a car calibrated for 235/50R19, the speedometer reads 57.6 mph when you're really doing 60, and the odometer under-counts by 4.2%.
| Speedo shows | Actual speed |
|---|---|
| 30 mph | 31.3 mph |
| 45 mph | 46.9 mph |
| 60 mph | 62.5 mph |
| 70 mph | 72.9 mph |
| 80 mph | 83.3 mph |
Other sizes close to 235/50R19
- 235/50R19 vs 235/55R19+3.27%
- 235/50R19 vs 235/55R18-0.26%
- 235/50R19 vs 245/45R19-2.02%
- 235/50R19 vs 255/50R19+2.79%
- 235/50R19 vs 255/40R19-4.32%
- 235/50R19 vs 255/45R19-0.77%
- 235/50R19 vs 225/55R19+1.74%
- 235/50R19 vs 275/40R19-2.09%
- 235/50R19 vs 255/40R20-0.78%
- 235/50R19 vs 225/45R19-4.53%
- 235/50R19 vs 245/55R19+4.81%
- 235/50R19 vs 285/35R19-4.95%
Questions
Can I replace 235/50R19 with 265/50R19?
265/50R19 is outside the ±3% rule as a replacement for 235/50R19: the diameter differs by +4.18%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.
What's the difference between 235/50R19 and 265/50R19?
265/50R19 is 1.18" taller and 30 mm wider; the sidewall is +0.59". At an indicated 60 mph you'd actually be doing 62.5 mph.
Will 265/50R19 fit on 235/50R19 wheels?
Both use a 19" rim, so the wheel diameter matches; check the wheel's width range for a 265 mm tire and the fender clearance.