Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 285/35-19 | 245/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.85 (682.1) | 26.72 (678.6) | -0.14 (-3.5) -0.5% |
| Width inches (mm) | 11.22 (285) | 9.65 (245) | -1.57 (-40) -14% |
| Circum. inches (mm) | 84.37 (2142.88) | 83.93 (2131.88) | -0.43 (-11) -0.5% |
| Sidewall Height inches (mm) | 3.93 (99.75) | 3.86 (98) | -0.07 (-1.75) -1.8% |
| Revolutions per mile (km) | 751.02 (466.66) | 754.89 (469.07) | 3.87 (2.41) 0.5% |
245/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.9 mph (32.02 km/h) |
| 25 mph (40.23 km/h) | 24.87 mph (40.03 km/h) |
| 30 mph (48.28 km/h) | 29.85 mph (48.03 km/h) |
| 35 mph (56.33 km/h) | 34.82 mph (56.04 km/h) |
| 40 mph (64.37 km/h) | 39.79 mph (64.04 km/h) |
| 45 mph (72.42 km/h) | 44.77 mph (72.05 km/h) |
| 50 mph (80.47 km/h) | 49.74 mph (80.05 km/h) |
| 55 mph (88.51 km/h) | 54.72 mph (88.06 km/h) |
| 60 mph (96.56 km/h) | 59.69 mph (96.07 km/h) |
| 65 mph (104.61 km/h) | 64.67 mph (104.07 km/h) |
| 70 mph (112.65 km/h) | 69.64 mph (112.08 km/h) |
| 75 mph (120.7 km/h) | 74.62 mph (120.08 km/h) |
| 80 mph (128.75 km/h) | 79.59 mph (128.09 km/h) |
| 85 mph (136.79 km/h) | 84.56 mph (136.09 km/h) |
| 90 mph (144.84 km/h) | 89.54 mph (144.1 km/h) |
| 95 mph (152.89 km/h) | 94.51 mph (152.1 km/h) |
| 100 mph (160.93 km/h) | 99.49 mph (160.11 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1921 | 2232 | 2403 | 2510 | 2624 | 2706 | 2796 | 2902 | 3049 | 3196 | 3360 | 3491 | 3728 | 3989 | 4194 | 4324 | 4398 | 4668 | 5044 | 5861 |
Better Fuel Economy Factory Ratios Increased Power
