Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/80-16 | 145/80-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.87 (606.4) | 22.13 (562.2) | -1.74 (-44.2) -7.3% |
| Width inches (mm) | 4.92 (125) | 5.71 (145) | 0.79 (20) 16% |
| Circum. inches (mm) | 75 (1905.06) | 69.54 (1766.2) | -5.47 (-138.86) -7.3% |
| Sidewall Height inches (mm) | 3.94 (100) | 4.57 (116) | 0.63 (16) 16% |
| Revolutions per mile (km) | 844.77 (524.92) | 911.19 (566.19) | 66.42 (41.27) 7.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.54 mph (29.84 km/h) |
| 25 mph (40.23 km/h) | 23.18 mph (37.3 km/h) |
| 30 mph (48.28 km/h) | 27.81 mph (44.76 km/h) |
| 35 mph (56.33 km/h) | 32.45 mph (52.22 km/h) |
| 40 mph (64.37 km/h) | 37.08 mph (59.68 km/h) |
| 45 mph (72.42 km/h) | 41.72 mph (67.14 km/h) |
| 50 mph (80.47 km/h) | 46.36 mph (74.6 km/h) |
| 55 mph (88.51 km/h) | 50.99 mph (82.06 km/h) |
| 60 mph (96.56 km/h) | 55.63 mph (89.52 km/h) |
| 65 mph (104.61 km/h) | 60.26 mph (96.98 km/h) |
| 70 mph (112.65 km/h) | 64.9 mph (104.44 km/h) |
| 75 mph (120.7 km/h) | 69.53 mph (111.9 km/h) |
| 80 mph (128.75 km/h) | 74.17 mph (119.36 km/h) |
| 85 mph (136.79 km/h) | 78.8 mph (126.82 km/h) |
| 90 mph (144.84 km/h) | 83.44 mph (134.28 km/h) |
| 95 mph (152.89 km/h) | 88.08 mph (141.74 km/h) |
| 100 mph (160.93 km/h) | 92.71 mph (149.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2319 | 2694 | 2901 | 3029 | 3167 | 3266 | 3375 | 3503 | 3680 | 3858 | 4055 | 4213 | 4499 | 4815 | 5062 | 5220 | 5309 | 5634 | 6088 | 7075 |
Better Fuel Economy Factory Ratios Increased Power
