Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 280/80-16 | 305/80-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.64 (854.4) | 35.21 (894.4) | 1.57 (40) 4.7% |
| Width inches (mm) | 11.02 (280) | 12.01 (305) | 0.98 (25) 8.9% |
| Circum. inches (mm) | 105.68 (2684.18) | 110.62 (2809.84) | 4.95 (125.66) 4.7% |
| Sidewall Height inches (mm) | 8.82 (224) | 9.61 (244) | 0.79 (20) 8.9% |
| Revolutions per mile (km) | 599.57 (372.55) | 572.75 (355.89) | -26.81 (-16.66) -4.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.94 mph (33.69 km/h) |
| 25 mph (40.23 km/h) | 26.17 mph (42.12 km/h) |
| 30 mph (48.28 km/h) | 31.4 mph (50.54 km/h) |
| 35 mph (56.33 km/h) | 36.64 mph (58.96 km/h) |
| 40 mph (64.37 km/h) | 41.87 mph (67.39 km/h) |
| 45 mph (72.42 km/h) | 47.11 mph (75.81 km/h) |
| 50 mph (80.47 km/h) | 52.34 mph (84.23 km/h) |
| 55 mph (88.51 km/h) | 57.57 mph (92.66 km/h) |
| 60 mph (96.56 km/h) | 62.81 mph (101.08 km/h) |
| 65 mph (104.61 km/h) | 68.04 mph (109.5 km/h) |
| 70 mph (112.65 km/h) | 73.28 mph (117.93 km/h) |
| 75 mph (120.7 km/h) | 78.51 mph (126.35 km/h) |
| 80 mph (128.75 km/h) | 83.75 mph (134.78 km/h) |
| 85 mph (136.79 km/h) | 88.98 mph (143.2 km/h) |
| 90 mph (144.84 km/h) | 94.21 mph (151.62 km/h) |
| 95 mph (152.89 km/h) | 99.45 mph (160.05 km/h) |
| 100 mph (160.93 km/h) | 104.68 mph (168.47 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1458 | 1693 | 1823 | 1904 | 1991 | 2053 | 2121 | 2202 | 2313 | 2425 | 2549 | 2648 | 2828 | 3027 | 3182 | 3281 | 3337 | 3542 | 3827 | 4447 |
Better Fuel Economy Factory Ratios Increased Power
