Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/50-20 | 265/70-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.04 (763) | 34.61 (879) | 4.57 (116) 15.2% |
| Width inches (mm) | 10.04 (255) | 10.43 (265) | 0.39 (10) 3.9% |
| Circum. inches (mm) | 94.37 (2397.04) | 108.72 (2761.46) | 14.35 (364.42) 15.2% |
| Sidewall Height inches (mm) | 5.02 (127.5) | 7.3 (185.5) | 2.28 (58) 45.5% |
| Revolutions per mile (km) | 671.39 (417.18) | 582.79 (362.13) | -88.6 (-55.05) -13.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.04 mph (37.08 km/h) |
| 25 mph (40.23 km/h) | 28.8 mph (46.35 km/h) |
| 30 mph (48.28 km/h) | 34.56 mph (55.62 km/h) |
| 35 mph (56.33 km/h) | 40.32 mph (64.89 km/h) |
| 40 mph (64.37 km/h) | 46.08 mph (74.16 km/h) |
| 45 mph (72.42 km/h) | 51.84 mph (83.43 km/h) |
| 50 mph (80.47 km/h) | 57.6 mph (92.7 km/h) |
| 55 mph (88.51 km/h) | 63.36 mph (101.97 km/h) |
| 60 mph (96.56 km/h) | 69.12 mph (111.24 km/h) |
| 65 mph (104.61 km/h) | 74.88 mph (120.51 km/h) |
| 70 mph (112.65 km/h) | 80.64 mph (129.78 km/h) |
| 75 mph (120.7 km/h) | 86.4 mph (139.05 km/h) |
| 80 mph (128.75 km/h) | 92.16 mph (148.32 km/h) |
| 85 mph (136.79 km/h) | 97.92 mph (157.59 km/h) |
| 90 mph (144.84 km/h) | 103.68 mph (166.86 km/h) |
| 95 mph (152.89 km/h) | 109.44 mph (176.13 km/h) |
| 100 mph (160.93 km/h) | 115.2 mph (185.4 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1483 | 1723 | 1855 | 1937 | 2026 | 2089 | 2158 | 2240 | 2354 | 2468 | 2594 | 2695 | 2878 | 3080 | 3238 | 3339 | 3395 | 3604 | 3894 | 4525 |
Better Fuel Economy Factory Ratios Increased Power
