Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/50-20 | 255/50-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.65 (753) | 29.04 (737.6) | -0.61 (-15.4) -2% |
| Width inches (mm) | 9.65 (245) | 10.04 (255) | 0.39 (10) 4.1% |
| Circum. inches (mm) | 93.13 (2365.62) | 91.23 (2317.24) | -1.9 (-48.38) -2% |
| Sidewall Height inches (mm) | 4.82 (122.5) | 5.02 (127.5) | 0.2 (5) 4.1% |
| Revolutions per mile (km) | 680.31 (422.72) | 694.51 (431.55) | 14.2 (8.83) 2.1% |
255/50-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.59 mph (31.53 km/h) |
| 25 mph (40.23 km/h) | 24.49 mph (39.41 km/h) |
| 30 mph (48.28 km/h) | 29.39 mph (47.29 km/h) |
| 35 mph (56.33 km/h) | 34.28 mph (55.18 km/h) |
| 40 mph (64.37 km/h) | 39.18 mph (63.06 km/h) |
| 45 mph (72.42 km/h) | 44.08 mph (70.94 km/h) |
| 50 mph (80.47 km/h) | 48.98 mph (78.82 km/h) |
| 55 mph (88.51 km/h) | 53.88 mph (86.7 km/h) |
| 60 mph (96.56 km/h) | 58.77 mph (94.59 km/h) |
| 65 mph (104.61 km/h) | 63.67 mph (102.47 km/h) |
| 70 mph (112.65 km/h) | 68.57 mph (110.35 km/h) |
| 75 mph (120.7 km/h) | 73.47 mph (118.23 km/h) |
| 80 mph (128.75 km/h) | 78.36 mph (126.11 km/h) |
| 85 mph (136.79 km/h) | 83.26 mph (134 km/h) |
| 90 mph (144.84 km/h) | 88.16 mph (141.88 km/h) |
| 95 mph (152.89 km/h) | 93.06 mph (149.76 km/h) |
| 100 mph (160.93 km/h) | 97.95 mph (157.64 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1767 | 2053 | 2211 | 2309 | 2414 | 2489 | 2572 | 2670 | 2805 | 2941 | 3091 | 3211 | 3429 | 3670 | 3858 | 3979 | 4046 | 4294 | 4640 | 5392 |
Better Fuel Economy Factory Ratios Increased Power
