Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 140/90-16 | 280/40-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.92 (658.4) | 28.82 (732) | 2.9 (73.6) 11.2% |
| Width inches (mm) | 5.51 (140) | 11.02 (280) | 5.51 (140) 100% |
| Circum. inches (mm) | 81.43 (2068.42) | 90.54 (2299.65) | 9.1 (231.22) 11.2% |
| Sidewall Height inches (mm) | 4.96 (126) | 4.41 (112) | -0.55 (-14) -11.1% |
| Revolutions per mile (km) | 778.05 (483.46) | 699.82 (434.85) | -78.23 (-48.61) -10.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.24 mph (35.78 km/h) |
| 25 mph (40.23 km/h) | 27.79 mph (44.73 km/h) |
| 30 mph (48.28 km/h) | 33.35 mph (53.68 km/h) |
| 35 mph (56.33 km/h) | 38.91 mph (62.62 km/h) |
| 40 mph (64.37 km/h) | 44.47 mph (71.57 km/h) |
| 45 mph (72.42 km/h) | 50.03 mph (80.52 km/h) |
| 50 mph (80.47 km/h) | 55.59 mph (89.46 km/h) |
| 55 mph (88.51 km/h) | 61.15 mph (98.41 km/h) |
| 60 mph (96.56 km/h) | 66.71 mph (107.35 km/h) |
| 65 mph (104.61 km/h) | 72.27 mph (116.3 km/h) |
| 70 mph (112.65 km/h) | 77.83 mph (125.25 km/h) |
| 75 mph (120.7 km/h) | 83.38 mph (134.19 km/h) |
| 80 mph (128.75 km/h) | 88.94 mph (143.14 km/h) |
| 85 mph (136.79 km/h) | 94.5 mph (152.09 km/h) |
| 90 mph (144.84 km/h) | 100.06 mph (161.03 km/h) |
| 95 mph (152.89 km/h) | 105.62 mph (169.98 km/h) |
| 100 mph (160.93 km/h) | 111.18 mph (178.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1781 | 2069 | 2228 | 2327 | 2433 | 2508 | 2592 | 2690 | 2827 | 2963 | 3115 | 3236 | 3456 | 3698 | 3888 | 4009 | 4077 | 4327 | 4676 | 5434 |
Better Fuel Economy Factory Ratios Increased Power
