Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/40-16 | 176/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.2 (538.4) | 22.54 (572.6) | 1.35 (34.2) 6.4% |
| Width inches (mm) | 6.5 (165) | 6.93 (176) | 0.43 (11) 6.7% |
| Circum. inches (mm) | 66.59 (1691.43) | 70.82 (1798.88) | 4.23 (107.44) 6.4% |
| Sidewall Height inches (mm) | 2.6 (66) | 2.77 (70.4) | 0.17 (4.4) 6.7% |
| Revolutions per mile (km) | 951.47 (591.21) | 894.64 (555.9) | -56.83 (-35.31) -6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.27 mph (34.23 km/h) |
| 25 mph (40.23 km/h) | 26.59 mph (42.79 km/h) |
| 30 mph (48.28 km/h) | 31.91 mph (51.35 km/h) |
| 35 mph (56.33 km/h) | 37.22 mph (59.91 km/h) |
| 40 mph (64.37 km/h) | 42.54 mph (68.46 km/h) |
| 45 mph (72.42 km/h) | 47.86 mph (77.02 km/h) |
| 50 mph (80.47 km/h) | 53.18 mph (85.58 km/h) |
| 55 mph (88.51 km/h) | 58.49 mph (94.14 km/h) |
| 60 mph (96.56 km/h) | 63.81 mph (102.69 km/h) |
| 65 mph (104.61 km/h) | 69.13 mph (111.25 km/h) |
| 70 mph (112.65 km/h) | 74.45 mph (119.81 km/h) |
| 75 mph (120.7 km/h) | 79.76 mph (128.37 km/h) |
| 80 mph (128.75 km/h) | 85.08 mph (136.93 km/h) |
| 85 mph (136.79 km/h) | 90.4 mph (145.48 km/h) |
| 90 mph (144.84 km/h) | 95.72 mph (154.04 km/h) |
| 95 mph (152.89 km/h) | 101.03 mph (162.6 km/h) |
| 100 mph (160.93 km/h) | 106.35 mph (171.16 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2277 | 2645 | 2848 | 2974 | 3110 | 3207 | 3313 | 3439 | 3614 | 3788 | 3982 | 4137 | 4418 | 4728 | 4970 | 5125 | 5212 | 5532 | 5978 | 6946 |
Better Fuel Economy Factory Ratios Increased Power
