Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/55-17 | 140/55-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.36 (618.8) | 23.06 (585.8) | -1.3 (-33) -5.3% |
| Width inches (mm) | 6.69 (170) | 5.51 (140) | -1.18 (-30) -17.6% |
| Circum. inches (mm) | 76.54 (1944.02) | 72.45 (1840.34) | -4.08 (-103.67) -5.3% |
| Sidewall Height inches (mm) | 3.68 (93.5) | 3.03 (77) | -0.65 (-16.5) -17.6% |
| Revolutions per mile (km) | 827.84 (514.4) | 874.48 (543.38) | 46.64 (28.98) 5.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.93 mph (30.47 km/h) |
| 25 mph (40.23 km/h) | 23.67 mph (38.09 km/h) |
| 30 mph (48.28 km/h) | 28.4 mph (45.71 km/h) |
| 35 mph (56.33 km/h) | 33.13 mph (53.32 km/h) |
| 40 mph (64.37 km/h) | 37.87 mph (60.94 km/h) |
| 45 mph (72.42 km/h) | 42.6 mph (68.56 km/h) |
| 50 mph (80.47 km/h) | 47.33 mph (76.18 km/h) |
| 55 mph (88.51 km/h) | 52.07 mph (83.79 km/h) |
| 60 mph (96.56 km/h) | 56.8 mph (91.41 km/h) |
| 65 mph (104.61 km/h) | 61.53 mph (99.03 km/h) |
| 70 mph (112.65 km/h) | 66.27 mph (106.65 km/h) |
| 75 mph (120.7 km/h) | 71 mph (114.26 km/h) |
| 80 mph (128.75 km/h) | 75.73 mph (121.88 km/h) |
| 85 mph (136.79 km/h) | 80.47 mph (129.5 km/h) |
| 90 mph (144.84 km/h) | 85.2 mph (137.12 km/h) |
| 95 mph (152.89 km/h) | 89.93 mph (144.73 km/h) |
| 100 mph (160.93 km/h) | 94.67 mph (152.35 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2225 | 2585 | 2784 | 2907 | 3040 | 3134 | 3239 | 3362 | 3532 | 3703 | 3892 | 4044 | 4318 | 4621 | 4858 | 5009 | 5095 | 5407 | 5843 | 6790 |
Better Fuel Economy Factory Ratios Increased Power
