Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 280/80-16 | 305/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.64 (854.4) | 35.01 (889.3) | 1.37 (34.9) 4.1% |
| Width inches (mm) | 11.02 (280) | 12.01 (305) | 0.98 (25) 8.9% |
| Circum. inches (mm) | 105.68 (2684.18) | 109.99 (2793.82) | 4.32 (109.64) 4.1% |
| Sidewall Height inches (mm) | 8.82 (224) | 9.01 (228.75) | 0.19 (4.75) 2.1% |
| Revolutions per mile (km) | 599.57 (372.55) | 576.04 (357.93) | -23.53 (-14.62) -3.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.82 mph (33.5 km/h) |
| 25 mph (40.23 km/h) | 26.02 mph (41.88 km/h) |
| 30 mph (48.28 km/h) | 31.23 mph (50.25 km/h) |
| 35 mph (56.33 km/h) | 36.43 mph (58.63 km/h) |
| 40 mph (64.37 km/h) | 41.63 mph (67 km/h) |
| 45 mph (72.42 km/h) | 46.84 mph (75.38 km/h) |
| 50 mph (80.47 km/h) | 52.04 mph (83.75 km/h) |
| 55 mph (88.51 km/h) | 57.25 mph (92.13 km/h) |
| 60 mph (96.56 km/h) | 62.45 mph (100.51 km/h) |
| 65 mph (104.61 km/h) | 67.66 mph (108.88 km/h) |
| 70 mph (112.65 km/h) | 72.86 mph (117.26 km/h) |
| 75 mph (120.7 km/h) | 78.06 mph (125.63 km/h) |
| 80 mph (128.75 km/h) | 83.27 mph (134.01 km/h) |
| 85 mph (136.79 km/h) | 88.47 mph (142.38 km/h) |
| 90 mph (144.84 km/h) | 93.68 mph (150.76 km/h) |
| 95 mph (152.89 km/h) | 98.88 mph (159.13 km/h) |
| 100 mph (160.93 km/h) | 104.08 mph (167.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1466 | 1703 | 1834 | 1915 | 2002 | 2065 | 2133 | 2214 | 2327 | 2439 | 2564 | 2664 | 2844 | 3044 | 3200 | 3300 | 3356 | 3562 | 3849 | 4473 |
Better Fuel Economy Factory Ratios Increased Power
