Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-13 | 155/70-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.34 (618.2) | 21.54 (547.2) | -2.8 (-71) -11.5% |
| Width inches (mm) | 7.09 (180) | 6.1 (155) | -0.98 (-25) -13.9% |
| Circum. inches (mm) | 76.46 (1942.13) | 67.68 (1719.08) | -8.78 (-223.05) -11.5% |
| Sidewall Height inches (mm) | 5.67 (144) | 4.27 (108.5) | -1.4 (-35.5) -24.7% |
| Revolutions per mile (km) | 828.65 (514.9) | 936.17 (581.71) | 107.52 (66.81) 13% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.7 mph (28.49 km/h) |
| 25 mph (40.23 km/h) | 22.13 mph (35.61 km/h) |
| 30 mph (48.28 km/h) | 26.55 mph (42.74 km/h) |
| 35 mph (56.33 km/h) | 30.98 mph (49.86 km/h) |
| 40 mph (64.37 km/h) | 35.41 mph (56.98 km/h) |
| 45 mph (72.42 km/h) | 39.83 mph (64.1 km/h) |
| 50 mph (80.47 km/h) | 44.26 mph (71.23 km/h) |
| 55 mph (88.51 km/h) | 48.68 mph (78.35 km/h) |
| 60 mph (96.56 km/h) | 53.11 mph (85.47 km/h) |
| 65 mph (104.61 km/h) | 57.53 mph (92.59 km/h) |
| 70 mph (112.65 km/h) | 61.96 mph (99.72 km/h) |
| 75 mph (120.7 km/h) | 66.39 mph (106.84 km/h) |
| 80 mph (128.75 km/h) | 70.81 mph (113.96 km/h) |
| 85 mph (136.79 km/h) | 75.24 mph (121.08 km/h) |
| 90 mph (144.84 km/h) | 79.66 mph (128.21 km/h) |
| 95 mph (152.89 km/h) | 84.09 mph (135.33 km/h) |
| 100 mph (160.93 km/h) | 88.52 mph (142.45 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
