Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/60-15 | 180/60-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.5 (597) | 22.5 (571.6) | -1 (-25.4) -4.3% |
| Width inches (mm) | 7.09 (180) | 7.09 (180) | 0 (0) 0% |
| Circum. inches (mm) | 73.84 (1875.53) | 70.7 (1795.73) | -3.14 (-79.8) -4.3% |
| Sidewall Height inches (mm) | 4.25 (108) | 4.25 (108) | 0 (0) 0% |
| Revolutions per mile (km) | 858.07 (533.18) | 896.2 (556.87) | 38.13 (23.69) 4.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.15 mph (30.82 km/h) |
| 25 mph (40.23 km/h) | 23.94 mph (38.52 km/h) |
| 30 mph (48.28 km/h) | 28.72 mph (46.23 km/h) |
| 35 mph (56.33 km/h) | 33.51 mph (53.93 km/h) |
| 40 mph (64.37 km/h) | 38.3 mph (61.64 km/h) |
| 45 mph (72.42 km/h) | 43.09 mph (69.34 km/h) |
| 50 mph (80.47 km/h) | 47.87 mph (77.04 km/h) |
| 55 mph (88.51 km/h) | 52.66 mph (84.75 km/h) |
| 60 mph (96.56 km/h) | 57.45 mph (92.45 km/h) |
| 65 mph (104.61 km/h) | 62.23 mph (100.16 km/h) |
| 70 mph (112.65 km/h) | 67.02 mph (107.86 km/h) |
| 75 mph (120.7 km/h) | 71.81 mph (115.57 km/h) |
| 80 mph (128.75 km/h) | 76.6 mph (123.27 km/h) |
| 85 mph (136.79 km/h) | 81.38 mph (130.97 km/h) |
| 90 mph (144.84 km/h) | 86.17 mph (138.68 km/h) |
| 95 mph (152.89 km/h) | 90.96 mph (146.38 km/h) |
| 100 mph (160.93 km/h) | 95.75 mph (154.09 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
