Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/60-20 | 175/70-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.8 (706) | 29.65 (753) | 1.85 (47) 6.7% |
| Width inches (mm) | 6.5 (165) | 6.89 (175) | 0.39 (10) 6.1% |
| Circum. inches (mm) | 87.32 (2217.96) | 93.13 (2365.62) | 5.81 (147.65) 6.7% |
| Sidewall Height inches (mm) | 3.9 (99) | 4.82 (122.5) | 0.93 (23.5) 23.7% |
| Revolutions per mile (km) | 725.6 (450.86) | 680.31 (422.72) | -45.29 (-28.14) -6.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.33 mph (34.33 km/h) |
| 25 mph (40.23 km/h) | 26.66 mph (42.91 km/h) |
| 30 mph (48.28 km/h) | 32 mph (51.49 km/h) |
| 35 mph (56.33 km/h) | 37.33 mph (60.08 km/h) |
| 40 mph (64.37 km/h) | 42.66 mph (68.66 km/h) |
| 45 mph (72.42 km/h) | 48 mph (77.24 km/h) |
| 50 mph (80.47 km/h) | 53.33 mph (85.82 km/h) |
| 55 mph (88.51 km/h) | 58.66 mph (94.41 km/h) |
| 60 mph (96.56 km/h) | 63.99 mph (102.99 km/h) |
| 65 mph (104.61 km/h) | 69.33 mph (111.57 km/h) |
| 70 mph (112.65 km/h) | 74.66 mph (120.15 km/h) |
| 75 mph (120.7 km/h) | 79.99 mph (128.74 km/h) |
| 80 mph (128.75 km/h) | 85.33 mph (137.32 km/h) |
| 85 mph (136.79 km/h) | 90.66 mph (145.9 km/h) |
| 90 mph (144.84 km/h) | 95.99 mph (154.48 km/h) |
| 95 mph (152.89 km/h) | 101.32 mph (163.07 km/h) |
| 100 mph (160.93 km/h) | 106.66 mph (171.65 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1731 | 2011 | 2166 | 2262 | 2365 | 2438 | 2520 | 2615 | 2748 | 2881 | 3028 | 3146 | 3359 | 3595 | 3779 | 3897 | 3963 | 4207 | 4545 | 5282 |
Better Fuel Economy Factory Ratios Increased Power
