Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 180/80-13 | 165/80-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.34 (618.2) | 23.39 (594.2) | -0.94 (-24) -3.9% |
| Width inches (mm) | 7.09 (180) | 6.5 (165) | -0.59 (-15) -8.3% |
| Circum. inches (mm) | 76.46 (1942.13) | 73.49 (1866.73) | -2.97 (-75.4) -3.9% |
| Sidewall Height inches (mm) | 5.67 (144) | 5.2 (132) | -0.47 (-12) -8.3% |
| Revolutions per mile (km) | 828.65 (514.9) | 862.12 (535.69) | 33.47 (20.8) 4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.22 mph (30.94 km/h) |
| 25 mph (40.23 km/h) | 24.03 mph (38.67 km/h) |
| 30 mph (48.28 km/h) | 28.84 mph (46.41 km/h) |
| 35 mph (56.33 km/h) | 33.64 mph (54.14 km/h) |
| 40 mph (64.37 km/h) | 38.45 mph (61.87 km/h) |
| 45 mph (72.42 km/h) | 43.25 mph (69.61 km/h) |
| 50 mph (80.47 km/h) | 48.06 mph (77.34 km/h) |
| 55 mph (88.51 km/h) | 52.86 mph (85.08 km/h) |
| 60 mph (96.56 km/h) | 57.67 mph (92.81 km/h) |
| 65 mph (104.61 km/h) | 62.48 mph (100.55 km/h) |
| 70 mph (112.65 km/h) | 67.28 mph (108.28 km/h) |
| 75 mph (120.7 km/h) | 72.09 mph (116.02 km/h) |
| 80 mph (128.75 km/h) | 76.89 mph (123.75 km/h) |
| 85 mph (136.79 km/h) | 81.7 mph (131.48 km/h) |
| 90 mph (144.84 km/h) | 86.51 mph (139.22 km/h) |
| 95 mph (152.89 km/h) | 91.31 mph (146.95 km/h) |
| 100 mph (160.93 km/h) | 96.12 mph (154.69 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2194 | 2549 | 2745 | 2866 | 2997 | 3090 | 3193 | 3314 | 3482 | 3650 | 3837 | 3986 | 4257 | 4556 | 4789 | 4939 | 5023 | 5331 | 5760 | 6694 |
Better Fuel Economy Factory Ratios Increased Power
