Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/85-18 | 295/75-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.7 (652.7) | 35.42 (899.7) | 9.72 (247) 37.8% |
| Width inches (mm) | 4.53 (115) | 11.61 (295) | 7.09 (180) 156.5% |
| Circum. inches (mm) | 80.73 (2050.52) | 111.28 (2826.49) | 30.55 (775.97) 37.8% |
| Sidewall Height inches (mm) | 3.85 (97.75) | 8.71 (221.25) | 4.86 (123.5) 126.3% |
| Revolutions per mile (km) | 784.85 (487.68) | 569.38 (353.79) | -215.47 (-133.89) -27.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 27.57 mph (44.37 km/h) |
| 25 mph (40.23 km/h) | 34.46 mph (55.46 km/h) |
| 30 mph (48.28 km/h) | 41.35 mph (66.55 km/h) |
| 35 mph (56.33 km/h) | 48.24 mph (77.64 km/h) |
| 40 mph (64.37 km/h) | 55.14 mph (88.73 km/h) |
| 45 mph (72.42 km/h) | 62.03 mph (99.83 km/h) |
| 50 mph (80.47 km/h) | 68.92 mph (110.92 km/h) |
| 55 mph (88.51 km/h) | 75.81 mph (122.01 km/h) |
| 60 mph (96.56 km/h) | 82.71 mph (133.1 km/h) |
| 65 mph (104.61 km/h) | 89.6 mph (144.19 km/h) |
| 70 mph (112.65 km/h) | 96.49 mph (155.29 km/h) |
| 75 mph (120.7 km/h) | 103.38 mph (166.38 km/h) |
| 80 mph (128.75 km/h) | 110.27 mph (177.47 km/h) |
| 85 mph (136.79 km/h) | 117.17 mph (188.56 km/h) |
| 90 mph (144.84 km/h) | 124.06 mph (199.65 km/h) |
| 95 mph (152.89 km/h) | 130.95 mph (210.75 km/h) |
| 100 mph (160.93 km/h) | 137.84 mph (221.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1449 | 1683 | 1813 | 1893 | 1979 | 2041 | 2109 | 2189 | 2300 | 2411 | 2534 | 2633 | 2812 | 3009 | 3163 | 3262 | 3317 | 3521 | 3804 | 4421 |
Better Fuel Economy Factory Ratios Increased Power
