Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/70-19.5 | 285/75-19.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33 (838.3) | 36.33 (922.8) | 3.33 (84.5) 10.1% |
| Width inches (mm) | 9.65 (245) | 11.22 (285) | 1.57 (40) 16.3% |
| Circum. inches (mm) | 103.68 (2633.6) | 114.14 (2899.06) | 10.45 (265.46) 10.1% |
| Sidewall Height inches (mm) | 6.75 (171.5) | 8.42 (213.75) | 1.66 (42.25) 24.6% |
| Revolutions per mile (km) | 611.08 (379.71) | 555.13 (344.94) | -55.96 (-34.77) -9.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.02 mph (35.43 km/h) |
| 25 mph (40.23 km/h) | 27.52 mph (44.29 km/h) |
| 30 mph (48.28 km/h) | 33.02 mph (53.15 km/h) |
| 35 mph (56.33 km/h) | 38.53 mph (62 km/h) |
| 40 mph (64.37 km/h) | 44.03 mph (70.86 km/h) |
| 45 mph (72.42 km/h) | 49.54 mph (79.72 km/h) |
| 50 mph (80.47 km/h) | 55.04 mph (88.58 km/h) |
| 55 mph (88.51 km/h) | 60.54 mph (97.44 km/h) |
| 60 mph (96.56 km/h) | 66.05 mph (106.29 km/h) |
| 65 mph (104.61 km/h) | 71.55 mph (115.15 km/h) |
| 70 mph (112.65 km/h) | 77.06 mph (124.01 km/h) |
| 75 mph (120.7 km/h) | 82.56 mph (132.87 km/h) |
| 80 mph (128.75 km/h) | 88.06 mph (141.73 km/h) |
| 85 mph (136.79 km/h) | 93.57 mph (150.58 km/h) |
| 90 mph (144.84 km/h) | 99.07 mph (159.44 km/h) |
| 95 mph (152.89 km/h) | 104.58 mph (168.3 km/h) |
| 100 mph (160.93 km/h) | 110.08 mph (177.16 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1413 | 1641 | 1767 | 1846 | 1930 | 1990 | 2056 | 2134 | 2242 | 2350 | 2471 | 2567 | 2741 | 2934 | 3084 | 3180 | 3234 | 3433 | 3709 | 4310 |
Better Fuel Economy Factory Ratios Increased Power
