Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-14 | 25.5/7.5-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.34 (643.6) | 25.58 (649.74) | 0.24 (6.14) 1% |
| Width inches (mm) | 7.09 (180) | 7.52 (191) | 0.43 (11) 6.1% |
| Circum. inches (mm) | 79.6 (2021.93) | 80.36 (2041.22) | 0.76 (19.29) 1% |
| Sidewall Height inches (mm) | 5.67 (144) | 5.79 (147.07) | 0.12 (3.07) 2.1% |
| Revolutions per mile (km) | 795.94 (494.58) | 788.42 (489.9) | -7.52 (-4.67) -0.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.19 mph (32.49 km/h) |
| 25 mph (40.23 km/h) | 25.24 mph (40.62 km/h) |
| 30 mph (48.28 km/h) | 30.29 mph (48.74 km/h) |
| 35 mph (56.33 km/h) | 35.33 mph (56.86 km/h) |
| 40 mph (64.37 km/h) | 40.38 mph (64.99 km/h) |
| 45 mph (72.42 km/h) | 45.43 mph (73.11 km/h) |
| 50 mph (80.47 km/h) | 50.48 mph (81.24 km/h) |
| 55 mph (88.51 km/h) | 55.52 mph (89.36 km/h) |
| 60 mph (96.56 km/h) | 60.57 mph (97.48 km/h) |
| 65 mph (104.61 km/h) | 65.62 mph (105.61 km/h) |
| 70 mph (112.65 km/h) | 70.67 mph (113.73 km/h) |
| 75 mph (120.7 km/h) | 75.72 mph (121.85 km/h) |
| 80 mph (128.75 km/h) | 80.76 mph (129.98 km/h) |
| 85 mph (136.79 km/h) | 85.81 mph (138.1 km/h) |
| 90 mph (144.84 km/h) | 90.86 mph (146.22 km/h) |
| 95 mph (152.89 km/h) | 95.91 mph (154.35 km/h) |
| 100 mph (160.93 km/h) | 100.95 mph (162.47 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2006 | 2331 | 2510 | 2621 | 2741 | 2826 | 2920 | 3031 | 3185 | 3338 | 3509 | 3646 | 3893 | 4166 | 4380 | 4517 | 4593 | 4875 | 5268 | 6122 |
Better Fuel Economy Factory Ratios Increased Power
