Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-13 | 145/80-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.5 (546.2) | 22.13 (562.2) | 0.63 (16) 2.9% |
| Width inches (mm) | 5.31 (135) | 5.71 (145) | 0.39 (10) 7.4% |
| Circum. inches (mm) | 67.56 (1715.94) | 69.54 (1766.2) | 1.98 (50.27) 2.9% |
| Sidewall Height inches (mm) | 4.25 (108) | 4.57 (116) | 0.31 (8) 7.4% |
| Revolutions per mile (km) | 937.88 (582.77) | 911.19 (566.19) | -26.69 (-16.59) -2.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.59 mph (33.13 km/h) |
| 25 mph (40.23 km/h) | 25.73 mph (41.41 km/h) |
| 30 mph (48.28 km/h) | 30.88 mph (49.69 km/h) |
| 35 mph (56.33 km/h) | 36.03 mph (57.98 km/h) |
| 40 mph (64.37 km/h) | 41.17 mph (66.26 km/h) |
| 45 mph (72.42 km/h) | 46.32 mph (74.54 km/h) |
| 50 mph (80.47 km/h) | 51.46 mph (82.82 km/h) |
| 55 mph (88.51 km/h) | 56.61 mph (91.11 km/h) |
| 60 mph (96.56 km/h) | 61.76 mph (99.39 km/h) |
| 65 mph (104.61 km/h) | 66.9 mph (107.67 km/h) |
| 70 mph (112.65 km/h) | 72.05 mph (115.95 km/h) |
| 75 mph (120.7 km/h) | 77.2 mph (124.24 km/h) |
| 80 mph (128.75 km/h) | 82.34 mph (132.52 km/h) |
| 85 mph (136.79 km/h) | 87.49 mph (140.8 km/h) |
| 90 mph (144.84 km/h) | 92.64 mph (149.08 km/h) |
| 95 mph (152.89 km/h) | 97.78 mph (157.37 km/h) |
| 100 mph (160.93 km/h) | 102.93 mph (165.65 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
