Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/40-17 | 185/35-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.46 (595.8) | 22.1 (561.3) | -1.36 (-34.5) -5.8% |
| Width inches (mm) | 8.07 (205) | 7.28 (185) | -0.79 (-20) -9.8% |
| Circum. inches (mm) | 73.69 (1871.76) | 69.42 (1763.38) | -4.27 (-108.38) -5.8% |
| Sidewall Height inches (mm) | 3.23 (82) | 2.55 (64.75) | -0.68 (-17.25) -21% |
| Revolutions per mile (km) | 859.8 (534.26) | 912.65 (567.09) | 52.85 (32.84) 6.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.84 mph (30.32 km/h) |
| 25 mph (40.23 km/h) | 23.55 mph (37.9 km/h) |
| 30 mph (48.28 km/h) | 28.26 mph (45.48 km/h) |
| 35 mph (56.33 km/h) | 32.97 mph (53.07 km/h) |
| 40 mph (64.37 km/h) | 37.68 mph (60.65 km/h) |
| 45 mph (72.42 km/h) | 42.39 mph (68.23 km/h) |
| 50 mph (80.47 km/h) | 47.1 mph (75.81 km/h) |
| 55 mph (88.51 km/h) | 51.82 mph (83.39 km/h) |
| 60 mph (96.56 km/h) | 56.53 mph (90.97 km/h) |
| 65 mph (104.61 km/h) | 61.24 mph (98.55 km/h) |
| 70 mph (112.65 km/h) | 65.95 mph (106.13 km/h) |
| 75 mph (120.7 km/h) | 70.66 mph (113.71 km/h) |
| 80 mph (128.75 km/h) | 75.37 mph (121.29 km/h) |
| 85 mph (136.79 km/h) | 80.08 mph (128.87 km/h) |
| 90 mph (144.84 km/h) | 84.79 mph (136.45 km/h) |
| 95 mph (152.89 km/h) | 89.5 mph (144.03 km/h) |
| 100 mph (160.93 km/h) | 94.21 mph (151.62 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2323 | 2698 | 2906 | 3034 | 3172 | 3271 | 3380 | 3508 | 3686 | 3864 | 4062 | 4220 | 4507 | 4823 | 5070 | 5228 | 5317 | 5643 | 6098 | 7086 |
Better Fuel Economy Factory Ratios Increased Power
