Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 115/70-14 | 155/65-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.34 (516.6) | 21.93 (557.1) | 1.59 (40.5) 7.8% |
| Width inches (mm) | 4.53 (115) | 6.1 (155) | 1.57 (40) 34.8% |
| Circum. inches (mm) | 63.9 (1622.95) | 68.9 (1750.18) | 5.01 (127.23) 7.8% |
| Sidewall Height inches (mm) | 3.17 (80.5) | 3.97 (100.75) | 0.8 (20.25) 25.2% |
| Revolutions per mile (km) | 991.62 (616.16) | 919.53 (571.37) | -72.09 (-44.79) -7.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.57 mph (34.71 km/h) |
| 25 mph (40.23 km/h) | 26.96 mph (43.39 km/h) |
| 30 mph (48.28 km/h) | 32.35 mph (52.07 km/h) |
| 35 mph (56.33 km/h) | 37.74 mph (60.74 km/h) |
| 40 mph (64.37 km/h) | 43.14 mph (69.42 km/h) |
| 45 mph (72.42 km/h) | 48.53 mph (78.1 km/h) |
| 50 mph (80.47 km/h) | 53.92 mph (86.78 km/h) |
| 55 mph (88.51 km/h) | 59.31 mph (95.45 km/h) |
| 60 mph (96.56 km/h) | 64.7 mph (104.13 km/h) |
| 65 mph (104.61 km/h) | 70.1 mph (112.81 km/h) |
| 70 mph (112.65 km/h) | 75.49 mph (121.49 km/h) |
| 75 mph (120.7 km/h) | 80.88 mph (130.16 km/h) |
| 80 mph (128.75 km/h) | 86.27 mph (138.84 km/h) |
| 85 mph (136.79 km/h) | 91.66 mph (147.52 km/h) |
| 90 mph (144.84 km/h) | 97.06 mph (156.2 km/h) |
| 95 mph (152.89 km/h) | 102.45 mph (164.87 km/h) |
| 100 mph (160.93 km/h) | 107.84 mph (173.55 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
