Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/80-17 | 255/85-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.91 (759.8) | 34.07 (865.3) | 4.15 (105.5) 13.9% |
| Width inches (mm) | 8.07 (205) | 10.04 (255) | 1.97 (50) 24.4% |
| Circum. inches (mm) | 93.98 (2386.98) | 107.02 (2718.42) | 13.05 (331.44) 13.9% |
| Sidewall Height inches (mm) | 6.46 (164) | 8.53 (216.75) | 2.08 (52.75) 32.2% |
| Revolutions per mile (km) | 674.22 (418.94) | 592.01 (367.86) | -82.2 (-51.08) -12.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.78 mph (36.66 km/h) |
| 25 mph (40.23 km/h) | 28.47 mph (45.82 km/h) |
| 30 mph (48.28 km/h) | 34.17 mph (54.98 km/h) |
| 35 mph (56.33 km/h) | 39.86 mph (64.15 km/h) |
| 40 mph (64.37 km/h) | 45.55 mph (73.31 km/h) |
| 45 mph (72.42 km/h) | 51.25 mph (82.48 km/h) |
| 50 mph (80.47 km/h) | 56.94 mph (91.64 km/h) |
| 55 mph (88.51 km/h) | 62.64 mph (100.8 km/h) |
| 60 mph (96.56 km/h) | 68.33 mph (109.97 km/h) |
| 65 mph (104.61 km/h) | 74.03 mph (119.13 km/h) |
| 70 mph (112.65 km/h) | 79.72 mph (128.3 km/h) |
| 75 mph (120.7 km/h) | 85.41 mph (137.46 km/h) |
| 80 mph (128.75 km/h) | 91.11 mph (146.62 km/h) |
| 85 mph (136.79 km/h) | 96.8 mph (155.79 km/h) |
| 90 mph (144.84 km/h) | 102.5 mph (164.95 km/h) |
| 95 mph (152.89 km/h) | 108.19 mph (174.12 km/h) |
| 100 mph (160.93 km/h) | 113.89 mph (183.28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1507 | 1750 | 1885 | 1968 | 2058 | 2122 | 2193 | 2276 | 2391 | 2507 | 2635 | 2737 | 2923 | 3129 | 3289 | 3391 | 3449 | 3661 | 3956 | 4597 |
Better Fuel Economy Factory Ratios Increased Power
