Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/80-19 | 300/80-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.56 (674.6) | 37.9 (962.6) | 11.34 (288) 42.7% |
| Width inches (mm) | 4.72 (120) | 11.81 (300) | 7.09 (180) 150% |
| Circum. inches (mm) | 83.44 (2119.32) | 119.06 (3024.1) | 35.62 (904.78) 42.7% |
| Sidewall Height inches (mm) | 3.78 (96) | 9.45 (240) | 5.67 (144) 150% |
| Revolutions per mile (km) | 759.37 (471.85) | 532.17 (330.68) | -227.2 (-141.17) -29.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 28.54 mph (45.93 km/h) |
| 25 mph (40.23 km/h) | 35.67 mph (57.41 km/h) |
| 30 mph (48.28 km/h) | 42.81 mph (68.89 km/h) |
| 35 mph (56.33 km/h) | 49.94 mph (80.37 km/h) |
| 40 mph (64.37 km/h) | 57.08 mph (91.86 km/h) |
| 45 mph (72.42 km/h) | 64.21 mph (103.34 km/h) |
| 50 mph (80.47 km/h) | 71.35 mph (114.82 km/h) |
| 55 mph (88.51 km/h) | 78.48 mph (126.3 km/h) |
| 60 mph (96.56 km/h) | 85.62 mph (137.78 km/h) |
| 65 mph (104.61 km/h) | 92.75 mph (149.27 km/h) |
| 70 mph (112.65 km/h) | 99.88 mph (160.75 km/h) |
| 75 mph (120.7 km/h) | 107.02 mph (172.23 km/h) |
| 80 mph (128.75 km/h) | 114.15 mph (183.71 km/h) |
| 85 mph (136.79 km/h) | 121.29 mph (195.19 km/h) |
| 90 mph (144.84 km/h) | 128.42 mph (206.68 km/h) |
| 95 mph (152.89 km/h) | 135.56 mph (218.16 km/h) |
| 100 mph (160.93 km/h) | 142.69 mph (229.64 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1354 | 1573 | 1694 | 1769 | 1850 | 1908 | 1971 | 2046 | 2150 | 2253 | 2369 | 2461 | 2628 | 2812 | 2956 | 3049 | 3100 | 3291 | 3556 | 4132 |
Better Fuel Economy Factory Ratios Increased Power
