Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/55-17 | 110/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.36 (618.8) | 20.46 (519.8) | -3.9 (-99) -16% |
| Width inches (mm) | 6.69 (170) | 4.33 (110) | -2.36 (-60) -35.3% |
| Circum. inches (mm) | 76.54 (1944.02) | 64.29 (1633) | -12.24 (-311.02) -16% |
| Sidewall Height inches (mm) | 3.68 (93.5) | 1.73 (44) | -1.95 (-49.5) -52.9% |
| Revolutions per mile (km) | 827.84 (514.4) | 985.51 (612.37) | 157.67 (97.97) 19% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.8 mph (27.04 km/h) |
| 25 mph (40.23 km/h) | 21 mph (33.8 km/h) |
| 30 mph (48.28 km/h) | 25.2 mph (40.56 km/h) |
| 35 mph (56.33 km/h) | 29.4 mph (47.32 km/h) |
| 40 mph (64.37 km/h) | 33.6 mph (54.07 km/h) |
| 45 mph (72.42 km/h) | 37.8 mph (60.83 km/h) |
| 50 mph (80.47 km/h) | 42 mph (67.59 km/h) |
| 55 mph (88.51 km/h) | 46.2 mph (74.35 km/h) |
| 60 mph (96.56 km/h) | 50.4 mph (81.11 km/h) |
| 65 mph (104.61 km/h) | 54.6 mph (87.87 km/h) |
| 70 mph (112.65 km/h) | 58.8 mph (94.63 km/h) |
| 75 mph (120.7 km/h) | 63 mph (101.39 km/h) |
| 80 mph (128.75 km/h) | 67.2 mph (108.15 km/h) |
| 85 mph (136.79 km/h) | 71.4 mph (114.91 km/h) |
| 90 mph (144.84 km/h) | 75.6 mph (121.67 km/h) |
| 95 mph (152.89 km/h) | 79.8 mph (128.43 km/h) |
| 100 mph (160.93 km/h) | 84 mph (135.19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
