Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/82-15 | 270/45-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.65 (651.6) | 29.57 (751) | 3.91 (99.4) 15.3% |
| Width inches (mm) | 6.5 (165) | 10.63 (270) | 4.13 (105) 63.6% |
| Circum. inches (mm) | 80.59 (2047.06) | 92.89 (2359.34) | 12.29 (312.27) 15.3% |
| Sidewall Height inches (mm) | 5.33 (135.3) | 4.78 (121.5) | -0.54 (-13.8) -10.2% |
| Revolutions per mile (km) | 786.17 (488.5) | 682.12 (423.85) | -104.06 (-64.66) -13.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.05 mph (37.1 km/h) |
| 25 mph (40.23 km/h) | 28.81 mph (46.37 km/h) |
| 30 mph (48.28 km/h) | 34.58 mph (55.65 km/h) |
| 35 mph (56.33 km/h) | 40.34 mph (64.92 km/h) |
| 40 mph (64.37 km/h) | 46.1 mph (74.19 km/h) |
| 45 mph (72.42 km/h) | 51.86 mph (83.47 km/h) |
| 50 mph (80.47 km/h) | 57.63 mph (92.74 km/h) |
| 55 mph (88.51 km/h) | 63.39 mph (102.02 km/h) |
| 60 mph (96.56 km/h) | 69.15 mph (111.29 km/h) |
| 65 mph (104.61 km/h) | 74.92 mph (120.57 km/h) |
| 70 mph (112.65 km/h) | 80.68 mph (129.84 km/h) |
| 75 mph (120.7 km/h) | 86.44 mph (139.11 km/h) |
| 80 mph (128.75 km/h) | 92.2 mph (148.39 km/h) |
| 85 mph (136.79 km/h) | 97.97 mph (157.66 km/h) |
| 90 mph (144.84 km/h) | 103.73 mph (166.94 km/h) |
| 95 mph (152.89 km/h) | 109.49 mph (176.21 km/h) |
| 100 mph (160.93 km/h) | 115.25 mph (185.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1736 | 2017 | 2172 | 2268 | 2371 | 2445 | 2526 | 2622 | 2755 | 2888 | 3036 | 3154 | 3368 | 3605 | 3789 | 3908 | 3974 | 4218 | 4558 | 5296 |
Better Fuel Economy Factory Ratios Increased Power
