Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/75-20 | 295/65-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 38.01 (965.5) | 35.1 (891.5) | -2.91 (-74) -7.7% |
| Width inches (mm) | 12.01 (305) | 11.61 (295) | -0.39 (-10) -3.3% |
| Circum. inches (mm) | 119.42 (3033.21) | 110.26 (2800.73) | -9.15 (-232.48) -7.7% |
| Sidewall Height inches (mm) | 9.01 (228.75) | 7.55 (191.75) | -1.46 (-37) -16.2% |
| Revolutions per mile (km) | 530.57 (329.68) | 574.62 (357.05) | 44.04 (27.37) 8.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.47 mph (29.72 km/h) |
| 25 mph (40.23 km/h) | 23.08 mph (37.15 km/h) |
| 30 mph (48.28 km/h) | 27.7 mph (44.58 km/h) |
| 35 mph (56.33 km/h) | 32.32 mph (52.01 km/h) |
| 40 mph (64.37 km/h) | 36.93 mph (59.44 km/h) |
| 45 mph (72.42 km/h) | 41.55 mph (66.87 km/h) |
| 50 mph (80.47 km/h) | 46.17 mph (74.3 km/h) |
| 55 mph (88.51 km/h) | 50.78 mph (81.73 km/h) |
| 60 mph (96.56 km/h) | 55.4 mph (89.16 km/h) |
| 65 mph (104.61 km/h) | 60.02 mph (96.59 km/h) |
| 70 mph (112.65 km/h) | 64.63 mph (104.02 km/h) |
| 75 mph (120.7 km/h) | 69.25 mph (111.45 km/h) |
| 80 mph (128.75 km/h) | 73.87 mph (118.88 km/h) |
| 85 mph (136.79 km/h) | 78.49 mph (126.31 km/h) |
| 90 mph (144.84 km/h) | 83.1 mph (133.74 km/h) |
| 95 mph (152.89 km/h) | 87.72 mph (141.17 km/h) |
| 100 mph (160.93 km/h) | 92.34 mph (148.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1462 | 1699 | 1829 | 1910 | 1997 | 2060 | 2128 | 2209 | 2321 | 2433 | 2557 | 2657 | 2837 | 3037 | 3192 | 3292 | 3348 | 3553 | 3839 | 4462 |
Better Fuel Economy Factory Ratios Increased Power
