Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/90-17 | 245/90-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.69 (728.8) | 34.36 (872.8) | 5.67 (144) 19.8% |
| Width inches (mm) | 6.5 (165) | 9.65 (245) | 3.15 (80) 48.5% |
| Circum. inches (mm) | 90.14 (2289.59) | 107.95 (2741.98) | 17.81 (452.39) 19.8% |
| Sidewall Height inches (mm) | 5.85 (148.5) | 8.68 (220.5) | 2.83 (72) 48.5% |
| Revolutions per mile (km) | 702.9 (436.76) | 586.93 (364.7) | -115.97 (-72.06) -16.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.95 mph (38.55 km/h) |
| 25 mph (40.23 km/h) | 29.94 mph (48.18 km/h) |
| 30 mph (48.28 km/h) | 35.93 mph (57.82 km/h) |
| 35 mph (56.33 km/h) | 41.92 mph (67.46 km/h) |
| 40 mph (64.37 km/h) | 47.9 mph (77.09 km/h) |
| 45 mph (72.42 km/h) | 53.89 mph (86.73 km/h) |
| 50 mph (80.47 km/h) | 59.88 mph (96.37 km/h) |
| 55 mph (88.51 km/h) | 65.87 mph (106 km/h) |
| 60 mph (96.56 km/h) | 71.86 mph (115.64 km/h) |
| 65 mph (104.61 km/h) | 77.84 mph (125.28 km/h) |
| 70 mph (112.65 km/h) | 83.83 mph (134.91 km/h) |
| 75 mph (120.7 km/h) | 89.82 mph (144.55 km/h) |
| 80 mph (128.75 km/h) | 95.81 mph (154.19 km/h) |
| 85 mph (136.79 km/h) | 101.79 mph (163.82 km/h) |
| 90 mph (144.84 km/h) | 107.78 mph (173.46 km/h) |
| 95 mph (152.89 km/h) | 113.77 mph (183.1 km/h) |
| 100 mph (160.93 km/h) | 119.76 mph (192.73 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1494 | 1735 | 1869 | 1951 | 2040 | 2104 | 2174 | 2256 | 2371 | 2485 | 2612 | 2714 | 2898 | 3102 | 3261 | 3362 | 3419 | 3629 | 3922 | 4557 |
Better Fuel Economy Factory Ratios Increased Power
