Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 80/70-17 | 305/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.41 (543.8) | 35.01 (889.3) | 13.6 (345.5) 63.5% |
| Width inches (mm) | 3.15 (80) | 12.01 (305) | 8.86 (225) 281.3% |
| Circum. inches (mm) | 67.26 (1708.4) | 109.99 (2793.82) | 42.73 (1085.42) 63.5% |
| Sidewall Height inches (mm) | 2.2 (56) | 9.01 (228.75) | 6.8 (172.75) 308.5% |
| Revolutions per mile (km) | 942.02 (585.34) | 576.04 (357.93) | -365.98 (-227.41) -38.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 32.71 mph (52.64 km/h) |
| 25 mph (40.23 km/h) | 40.88 mph (65.8 km/h) |
| 30 mph (48.28 km/h) | 49.06 mph (78.96 km/h) |
| 35 mph (56.33 km/h) | 57.24 mph (92.11 km/h) |
| 40 mph (64.37 km/h) | 65.41 mph (105.27 km/h) |
| 45 mph (72.42 km/h) | 73.59 mph (118.43 km/h) |
| 50 mph (80.47 km/h) | 81.77 mph (131.59 km/h) |
| 55 mph (88.51 km/h) | 89.94 mph (144.75 km/h) |
| 60 mph (96.56 km/h) | 98.12 mph (157.91 km/h) |
| 65 mph (104.61 km/h) | 106.3 mph (171.07 km/h) |
| 70 mph (112.65 km/h) | 114.47 mph (184.23 km/h) |
| 75 mph (120.7 km/h) | 122.65 mph (197.39 km/h) |
| 80 mph (128.75 km/h) | 130.83 mph (210.55 km/h) |
| 85 mph (136.79 km/h) | 139 mph (223.71 km/h) |
| 90 mph (144.84 km/h) | 147.18 mph (236.87 km/h) |
| 95 mph (152.89 km/h) | 155.36 mph (250.02 km/h) |
| 100 mph (160.93 km/h) | 163.53 mph (263.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1466 | 1703 | 1834 | 1915 | 2002 | 2065 | 2133 | 2214 | 2327 | 2439 | 2564 | 2664 | 2844 | 3044 | 3200 | 3300 | 3356 | 3562 | 3849 | 4473 |
Better Fuel Economy Factory Ratios Increased Power
