Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-14 | 165/80-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.34 (643.6) | 24.39 (619.6) | -0.94 (-24) -3.7% |
| Width inches (mm) | 7.09 (180) | 6.5 (165) | -0.59 (-15) -8.3% |
| Circum. inches (mm) | 79.6 (2021.93) | 76.64 (1946.53) | -2.97 (-75.4) -3.7% |
| Sidewall Height inches (mm) | 5.67 (144) | 5.2 (132) | -0.47 (-12) -8.3% |
| Revolutions per mile (km) | 795.94 (494.58) | 826.78 (513.73) | 30.83 (19.16) 3.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.25 mph (30.99 km/h) |
| 25 mph (40.23 km/h) | 24.07 mph (38.73 km/h) |
| 30 mph (48.28 km/h) | 28.88 mph (46.48 km/h) |
| 35 mph (56.33 km/h) | 33.69 mph (54.23 km/h) |
| 40 mph (64.37 km/h) | 38.51 mph (61.97 km/h) |
| 45 mph (72.42 km/h) | 43.32 mph (69.72 km/h) |
| 50 mph (80.47 km/h) | 48.14 mph (77.47 km/h) |
| 55 mph (88.51 km/h) | 52.95 mph (85.21 km/h) |
| 60 mph (96.56 km/h) | 57.76 mph (92.96 km/h) |
| 65 mph (104.61 km/h) | 62.58 mph (100.71 km/h) |
| 70 mph (112.65 km/h) | 67.39 mph (108.45 km/h) |
| 75 mph (120.7 km/h) | 72.2 mph (116.2 km/h) |
| 80 mph (128.75 km/h) | 77.02 mph (123.95 km/h) |
| 85 mph (136.79 km/h) | 81.83 mph (131.69 km/h) |
| 90 mph (144.84 km/h) | 86.64 mph (139.44 km/h) |
| 95 mph (152.89 km/h) | 91.46 mph (147.19 km/h) |
| 100 mph (160.93 km/h) | 96.27 mph (154.93 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2104 | 2444 | 2632 | 2749 | 2874 | 2963 | 3062 | 3178 | 3340 | 3501 | 3680 | 3823 | 4083 | 4369 | 4593 | 4736 | 4817 | 5112 | 5524 | 6419 |
Better Fuel Economy Factory Ratios Increased Power
