Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/80-16 | 445/40-22.5 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.5 (622.4) | 36.52 (927.5) | 12.01 (305.1) 49% |
| Width inches (mm) | 5.31 (135) | 17.52 (445) | 12.2 (310) 229.6% |
| Circum. inches (mm) | 76.98 (1955.33) | 114.72 (2913.83) | 37.74 (958.5) 49% |
| Sidewall Height inches (mm) | 4.25 (108) | 7.01 (178) | 2.76 (70) 64.8% |
| Revolutions per mile (km) | 823.06 (511.42) | 552.31 (343.19) | -270.74 (-168.23) -32.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 29.8 mph (47.96 km/h) |
| 25 mph (40.23 km/h) | 37.25 mph (59.96 km/h) |
| 30 mph (48.28 km/h) | 44.71 mph (71.95 km/h) |
| 35 mph (56.33 km/h) | 52.16 mph (83.94 km/h) |
| 40 mph (64.37 km/h) | 59.61 mph (95.93 km/h) |
| 45 mph (72.42 km/h) | 67.06 mph (107.92 km/h) |
| 50 mph (80.47 km/h) | 74.51 mph (119.91 km/h) |
| 55 mph (88.51 km/h) | 81.96 mph (131.9 km/h) |
| 60 mph (96.56 km/h) | 89.41 mph (143.89 km/h) |
| 65 mph (104.61 km/h) | 96.86 mph (155.89 km/h) |
| 70 mph (112.65 km/h) | 104.31 mph (167.88 km/h) |
| 75 mph (120.7 km/h) | 111.76 mph (179.87 km/h) |
| 80 mph (128.75 km/h) | 119.22 mph (191.86 km/h) |
| 85 mph (136.79 km/h) | 126.67 mph (203.85 km/h) |
| 90 mph (144.84 km/h) | 134.12 mph (215.84 km/h) |
| 95 mph (152.89 km/h) | 141.57 mph (227.83 km/h) |
| 100 mph (160.93 km/h) | 149.02 mph (239.82 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1406 | 1633 | 1758 | 1836 | 1920 | 1980 | 2045 | 2123 | 2231 | 2339 | 2458 | 2554 | 2727 | 2919 | 3068 | 3164 | 3218 | 3415 | 3690 | 4288 |
Better Fuel Economy Factory Ratios Increased Power
