Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/85-18 | 295/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.7 (652.7) | 34.26 (870.2) | 8.56 (217.5) 33.3% |
| Width inches (mm) | 4.53 (115) | 11.61 (295) | 7.09 (180) 156.5% |
| Circum. inches (mm) | 80.73 (2050.52) | 107.63 (2733.81) | 26.9 (683.3) 33.3% |
| Sidewall Height inches (mm) | 3.85 (97.75) | 8.13 (206.5) | 4.28 (108.75) 111.3% |
| Revolutions per mile (km) | 784.85 (487.68) | 588.68 (365.79) | -196.17 (-121.89) -25% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 26.66 mph (42.91 km/h) |
| 25 mph (40.23 km/h) | 33.33 mph (53.64 km/h) |
| 30 mph (48.28 km/h) | 40 mph (64.37 km/h) |
| 35 mph (56.33 km/h) | 46.66 mph (75.1 km/h) |
| 40 mph (64.37 km/h) | 53.33 mph (85.83 km/h) |
| 45 mph (72.42 km/h) | 60 mph (96.55 km/h) |
| 50 mph (80.47 km/h) | 66.66 mph (107.28 km/h) |
| 55 mph (88.51 km/h) | 73.33 mph (118.01 km/h) |
| 60 mph (96.56 km/h) | 79.99 mph (128.74 km/h) |
| 65 mph (104.61 km/h) | 86.66 mph (139.47 km/h) |
| 70 mph (112.65 km/h) | 93.33 mph (150.19 km/h) |
| 75 mph (120.7 km/h) | 99.99 mph (160.92 km/h) |
| 80 mph (128.75 km/h) | 106.66 mph (171.65 km/h) |
| 85 mph (136.79 km/h) | 113.32 mph (182.38 km/h) |
| 90 mph (144.84 km/h) | 119.99 mph (193.11 km/h) |
| 95 mph (152.89 km/h) | 126.66 mph (203.84 km/h) |
| 100 mph (160.93 km/h) | 133.32 mph (214.56 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1498 | 1740 | 1874 | 1957 | 2046 | 2110 | 2180 | 2263 | 2378 | 2493 | 2620 | 2722 | 2907 | 3111 | 3270 | 3372 | 3430 | 3640 | 3933 | 4571 |
Better Fuel Economy Factory Ratios Increased Power
