Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 280/85-16 | 275/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 34.74 (882.4) | 33.24 (844.3) | -1.5 (-38.1) -4.3% |
| Width inches (mm) | 11.02 (280) | 10.83 (275) | -0.2 (-5) -1.8% |
| Circum. inches (mm) | 109.14 (2772.14) | 104.43 (2652.45) | -4.71 (-119.69) -4.3% |
| Sidewall Height inches (mm) | 9.37 (238) | 8.12 (206.25) | -1.25 (-31.75) -13.3% |
| Revolutions per mile (km) | 580.54 (360.73) | 606.74 (377.01) | 26.2 (16.28) 4.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.14 mph (30.8 km/h) |
| 25 mph (40.23 km/h) | 23.92 mph (38.5 km/h) |
| 30 mph (48.28 km/h) | 28.7 mph (46.2 km/h) |
| 35 mph (56.33 km/h) | 33.49 mph (53.9 km/h) |
| 40 mph (64.37 km/h) | 38.27 mph (61.59 km/h) |
| 45 mph (72.42 km/h) | 43.06 mph (69.29 km/h) |
| 50 mph (80.47 km/h) | 47.84 mph (76.99 km/h) |
| 55 mph (88.51 km/h) | 52.63 mph (84.69 km/h) |
| 60 mph (96.56 km/h) | 57.41 mph (92.39 km/h) |
| 65 mph (104.61 km/h) | 62.19 mph (100.09 km/h) |
| 70 mph (112.65 km/h) | 66.98 mph (107.79 km/h) |
| 75 mph (120.7 km/h) | 71.76 mph (115.49 km/h) |
| 80 mph (128.75 km/h) | 76.55 mph (123.19 km/h) |
| 85 mph (136.79 km/h) | 81.33 mph (130.89 km/h) |
| 90 mph (144.84 km/h) | 86.11 mph (138.59 km/h) |
| 95 mph (152.89 km/h) | 90.9 mph (146.29 km/h) |
| 100 mph (160.93 km/h) | 95.68 mph (153.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1544 | 1794 | 1932 | 2017 | 2109 | 2175 | 2247 | 2332 | 2451 | 2569 | 2700 | 2806 | 2996 | 3206 | 3371 | 3476 | 3535 | 3752 | 4054 | 4711 |
Better Fuel Economy Factory Ratios Increased Power
