Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 270/70-16 | 290/60-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.88 (784.4) | 33.7 (856) | 2.82 (71.6) 9.1% |
| Width inches (mm) | 10.63 (270) | 11.42 (290) | 0.79 (20) 7.4% |
| Circum. inches (mm) | 97.02 (2464.27) | 105.87 (2689.2) | 8.86 (224.94) 9.1% |
| Sidewall Height inches (mm) | 7.44 (189) | 6.85 (174) | -0.59 (-15) -7.9% |
| Revolutions per mile (km) | 653.07 (405.8) | 598.45 (371.86) | -54.63 (-33.94) -8.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.83 mph (35.12 km/h) |
| 25 mph (40.23 km/h) | 27.28 mph (43.91 km/h) |
| 30 mph (48.28 km/h) | 32.74 mph (52.69 km/h) |
| 35 mph (56.33 km/h) | 38.19 mph (61.47 km/h) |
| 40 mph (64.37 km/h) | 43.65 mph (70.25 km/h) |
| 45 mph (72.42 km/h) | 49.11 mph (79.03 km/h) |
| 50 mph (80.47 km/h) | 54.56 mph (87.81 km/h) |
| 55 mph (88.51 km/h) | 60.02 mph (96.59 km/h) |
| 60 mph (96.56 km/h) | 65.48 mph (105.37 km/h) |
| 65 mph (104.61 km/h) | 70.93 mph (114.16 km/h) |
| 70 mph (112.65 km/h) | 76.39 mph (122.94 km/h) |
| 75 mph (120.7 km/h) | 81.85 mph (131.72 km/h) |
| 80 mph (128.75 km/h) | 87.3 mph (140.5 km/h) |
| 85 mph (136.79 km/h) | 92.76 mph (149.28 km/h) |
| 90 mph (144.84 km/h) | 98.22 mph (158.06 km/h) |
| 95 mph (152.89 km/h) | 103.67 mph (166.84 km/h) |
| 100 mph (160.93 km/h) | 109.13 mph (175.62 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1523 | 1769 | 1905 | 1990 | 2080 | 2145 | 2216 | 2301 | 2417 | 2534 | 2664 | 2767 | 2955 | 3163 | 3325 | 3428 | 3487 | 3700 | 3999 | 4647 |
Better Fuel Economy Factory Ratios Increased Power
