Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/55-17 | 110/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.36 (618.8) | 23.93 (607.8) | -0.43 (-11) -1.8% |
| Width inches (mm) | 6.69 (170) | 4.33 (110) | -2.36 (-60) -35.3% |
| Circum. inches (mm) | 76.54 (1944.02) | 75.18 (1909.46) | -1.36 (-34.56) -1.8% |
| Sidewall Height inches (mm) | 3.68 (93.5) | 3.46 (88) | -0.22 (-5.5) -5.9% |
| Revolutions per mile (km) | 827.84 (514.4) | 842.83 (523.71) | 14.98 (9.31) 1.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.64 mph (31.61 km/h) |
| 25 mph (40.23 km/h) | 24.56 mph (39.52 km/h) |
| 30 mph (48.28 km/h) | 29.47 mph (47.42 km/h) |
| 35 mph (56.33 km/h) | 34.38 mph (55.33 km/h) |
| 40 mph (64.37 km/h) | 39.29 mph (63.23 km/h) |
| 45 mph (72.42 km/h) | 44.2 mph (71.13 km/h) |
| 50 mph (80.47 km/h) | 49.11 mph (79.04 km/h) |
| 55 mph (88.51 km/h) | 54.02 mph (86.94 km/h) |
| 60 mph (96.56 km/h) | 58.93 mph (94.84 km/h) |
| 65 mph (104.61 km/h) | 63.84 mph (102.75 km/h) |
| 70 mph (112.65 km/h) | 68.76 mph (110.65 km/h) |
| 75 mph (120.7 km/h) | 73.67 mph (118.56 km/h) |
| 80 mph (128.75 km/h) | 78.58 mph (126.46 km/h) |
| 85 mph (136.79 km/h) | 83.49 mph (134.36 km/h) |
| 90 mph (144.84 km/h) | 88.4 mph (142.27 km/h) |
| 95 mph (152.89 km/h) | 93.31 mph (150.17 km/h) |
| 100 mph (160.93 km/h) | 98.22 mph (158.07 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2145 | 2492 | 2683 | 2802 | 2930 | 3021 | 3121 | 3240 | 3404 | 3569 | 3751 | 3897 | 4162 | 4454 | 4682 | 4828 | 4910 | 5211 | 5631 | 6544 |
Better Fuel Economy Factory Ratios Increased Power
