Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/30-20 | 265/75-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.26 (667) | 35.65 (905.5) | 9.39 (238.5) 35.8% |
| Width inches (mm) | 10.43 (265) | 10.43 (265) | 0 (0) 0% |
| Circum. inches (mm) | 82.5 (2095.44) | 112 (2844.71) | 29.5 (749.27) 35.8% |
| Sidewall Height inches (mm) | 3.13 (79.5) | 7.82 (198.75) | 4.69 (119.25) 150% |
| Revolutions per mile (km) | 768.02 (477.23) | 565.73 (351.53) | -202.29 (-125.7) -26.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 27.15 mph (43.7 km/h) |
| 25 mph (40.23 km/h) | 33.94 mph (54.62 km/h) |
| 30 mph (48.28 km/h) | 40.73 mph (65.54 km/h) |
| 35 mph (56.33 km/h) | 47.51 mph (76.47 km/h) |
| 40 mph (64.37 km/h) | 54.3 mph (87.39 km/h) |
| 45 mph (72.42 km/h) | 61.09 mph (98.32 km/h) |
| 50 mph (80.47 km/h) | 67.88 mph (109.24 km/h) |
| 55 mph (88.51 km/h) | 74.67 mph (120.16 km/h) |
| 60 mph (96.56 km/h) | 81.45 mph (131.09 km/h) |
| 65 mph (104.61 km/h) | 88.24 mph (142.01 km/h) |
| 70 mph (112.65 km/h) | 95.03 mph (152.94 km/h) |
| 75 mph (120.7 km/h) | 101.82 mph (163.86 km/h) |
| 80 mph (128.75 km/h) | 108.61 mph (174.78 km/h) |
| 85 mph (136.79 km/h) | 115.39 mph (185.71 km/h) |
| 90 mph (144.84 km/h) | 122.18 mph (196.63 km/h) |
| 95 mph (152.89 km/h) | 128.97 mph (207.56 km/h) |
| 100 mph (160.93 km/h) | 135.76 mph (218.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1440 | 1672 | 1801 | 1881 | 1967 | 2028 | 2095 | 2175 | 2285 | 2395 | 2518 | 2616 | 2794 | 2990 | 3143 | 3241 | 3296 | 3498 | 3780 | 4393 |
Better Fuel Economy Factory Ratios Increased Power
