Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/40-16 | 205/40-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.2 (538.4) | 22.46 (570.4) | 1.26 (32) 5.9% |
| Width inches (mm) | 6.5 (165) | 8.07 (205) | 1.57 (40) 24.2% |
| Circum. inches (mm) | 66.59 (1691.43) | 70.55 (1791.96) | 3.96 (100.53) 5.9% |
| Sidewall Height inches (mm) | 2.6 (66) | 3.23 (82) | 0.63 (16) 24.2% |
| Revolutions per mile (km) | 951.47 (591.21) | 898.09 (558.05) | -53.38 (-33.17) -5.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.19 mph (34.1 km/h) |
| 25 mph (40.23 km/h) | 26.49 mph (42.62 km/h) |
| 30 mph (48.28 km/h) | 31.78 mph (51.15 km/h) |
| 35 mph (56.33 km/h) | 37.08 mph (59.67 km/h) |
| 40 mph (64.37 km/h) | 42.38 mph (68.2 km/h) |
| 45 mph (72.42 km/h) | 47.67 mph (76.72 km/h) |
| 50 mph (80.47 km/h) | 52.97 mph (85.25 km/h) |
| 55 mph (88.51 km/h) | 58.27 mph (93.77 km/h) |
| 60 mph (96.56 km/h) | 63.57 mph (102.3 km/h) |
| 65 mph (104.61 km/h) | 68.86 mph (110.82 km/h) |
| 70 mph (112.65 km/h) | 74.16 mph (119.35 km/h) |
| 75 mph (120.7 km/h) | 79.46 mph (127.87 km/h) |
| 80 mph (128.75 km/h) | 84.75 mph (136.4 km/h) |
| 85 mph (136.79 km/h) | 90.05 mph (144.92 km/h) |
| 90 mph (144.84 km/h) | 95.35 mph (153.45 km/h) |
| 95 mph (152.89 km/h) | 100.65 mph (161.97 km/h) |
| 100 mph (160.93 km/h) | 105.94 mph (170.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2285 | 2655 | 2859 | 2986 | 3122 | 3219 | 3326 | 3453 | 3628 | 3803 | 3997 | 4153 | 4435 | 4746 | 4989 | 5145 | 5232 | 5553 | 6001 | 6973 |
Better Fuel Economy Factory Ratios Increased Power
