Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-14 | 180/60-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.34 (643.6) | 22.5 (571.6) | -2.83 (-72) -11.2% |
| Width inches (mm) | 7.09 (180) | 7.09 (180) | 0 (0) 0% |
| Circum. inches (mm) | 79.6 (2021.93) | 70.7 (1795.73) | -8.91 (-226.19) -11.2% |
| Sidewall Height inches (mm) | 5.67 (144) | 4.25 (108) | -1.42 (-36) -25% |
| Revolutions per mile (km) | 795.94 (494.58) | 896.2 (556.87) | 100.26 (62.3) 12.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.76 mph (28.59 km/h) |
| 25 mph (40.23 km/h) | 22.2 mph (35.73 km/h) |
| 30 mph (48.28 km/h) | 26.64 mph (42.88 km/h) |
| 35 mph (56.33 km/h) | 31.08 mph (50.03 km/h) |
| 40 mph (64.37 km/h) | 35.53 mph (57.17 km/h) |
| 45 mph (72.42 km/h) | 39.97 mph (64.32 km/h) |
| 50 mph (80.47 km/h) | 44.41 mph (71.47 km/h) |
| 55 mph (88.51 km/h) | 48.85 mph (78.61 km/h) |
| 60 mph (96.56 km/h) | 53.29 mph (85.76 km/h) |
| 65 mph (104.61 km/h) | 57.73 mph (92.91 km/h) |
| 70 mph (112.65 km/h) | 62.17 mph (100.05 km/h) |
| 75 mph (120.7 km/h) | 66.61 mph (107.2 km/h) |
| 80 mph (128.75 km/h) | 71.05 mph (114.34 km/h) |
| 85 mph (136.79 km/h) | 75.49 mph (121.49 km/h) |
| 90 mph (144.84 km/h) | 79.93 mph (128.64 km/h) |
| 95 mph (152.89 km/h) | 84.37 mph (135.78 km/h) |
| 100 mph (160.93 km/h) | 88.81 mph (142.93 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2281 | 2649 | 2853 | 2979 | 3115 | 3212 | 3319 | 3445 | 3620 | 3795 | 3989 | 4144 | 4425 | 4736 | 4979 | 5134 | 5221 | 5542 | 5988 | 6958 |
Better Fuel Economy Factory Ratios Increased Power
