Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/55-16 | 175/40-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.58 (598.9) | 21.51 (546.4) | -2.07 (-52.5) -8.8% |
| Width inches (mm) | 6.89 (175) | 6.89 (175) | 0 (0) 0% |
| Circum. inches (mm) | 74.07 (1881.5) | 67.58 (1716.57) | -6.49 (-164.93) -8.8% |
| Sidewall Height inches (mm) | 3.79 (96.25) | 2.76 (70) | -1.03 (-26.25) -27.3% |
| Revolutions per mile (km) | 855.35 (531.49) | 937.54 (582.56) | 82.19 (51.07) 9.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.25 mph (29.37 km/h) |
| 25 mph (40.23 km/h) | 22.81 mph (36.71 km/h) |
| 30 mph (48.28 km/h) | 27.37 mph (44.05 km/h) |
| 35 mph (56.33 km/h) | 31.93 mph (51.39 km/h) |
| 40 mph (64.37 km/h) | 36.49 mph (58.73 km/h) |
| 45 mph (72.42 km/h) | 41.06 mph (66.07 km/h) |
| 50 mph (80.47 km/h) | 45.62 mph (73.41 km/h) |
| 55 mph (88.51 km/h) | 50.18 mph (80.75 km/h) |
| 60 mph (96.56 km/h) | 54.74 mph (88.1 km/h) |
| 65 mph (104.61 km/h) | 59.3 mph (95.44 km/h) |
| 70 mph (112.65 km/h) | 63.86 mph (102.78 km/h) |
| 75 mph (120.7 km/h) | 68.43 mph (110.12 km/h) |
| 80 mph (128.75 km/h) | 72.99 mph (117.46 km/h) |
| 85 mph (136.79 km/h) | 77.55 mph (124.8 km/h) |
| 90 mph (144.84 km/h) | 82.11 mph (132.14 km/h) |
| 95 mph (152.89 km/h) | 86.67 mph (139.49 km/h) |
| 100 mph (160.93 km/h) | 91.23 mph (146.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
