Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 235/75-15 | 265/75-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.88 (733.5) | 35.65 (905.5) | 6.77 (172) 23.4% |
| Width inches (mm) | 9.25 (235) | 10.43 (265) | 1.18 (30) 12.8% |
| Circum. inches (mm) | 90.72 (2304.36) | 112 (2844.71) | 21.27 (540.35) 23.4% |
| Sidewall Height inches (mm) | 6.94 (176.25) | 7.82 (198.75) | 0.89 (22.5) 12.8% |
| Revolutions per mile (km) | 698.39 (433.96) | 565.73 (351.53) | -132.66 (-82.43) -19% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.69 mph (39.73 km/h) |
| 25 mph (40.23 km/h) | 30.86 mph (49.67 km/h) |
| 30 mph (48.28 km/h) | 37.03 mph (59.6 km/h) |
| 35 mph (56.33 km/h) | 43.21 mph (69.54 km/h) |
| 40 mph (64.37 km/h) | 49.38 mph (79.47 km/h) |
| 45 mph (72.42 km/h) | 55.55 mph (89.4 km/h) |
| 50 mph (80.47 km/h) | 61.72 mph (99.34 km/h) |
| 55 mph (88.51 km/h) | 67.9 mph (109.27 km/h) |
| 60 mph (96.56 km/h) | 74.07 mph (119.2 km/h) |
| 65 mph (104.61 km/h) | 80.24 mph (129.14 km/h) |
| 70 mph (112.65 km/h) | 86.41 mph (139.07 km/h) |
| 75 mph (120.7 km/h) | 92.59 mph (149 km/h) |
| 80 mph (128.75 km/h) | 98.76 mph (158.94 km/h) |
| 85 mph (136.79 km/h) | 104.93 mph (168.87 km/h) |
| 90 mph (144.84 km/h) | 111.1 mph (178.81 km/h) |
| 95 mph (152.89 km/h) | 117.28 mph (188.74 km/h) |
| 100 mph (160.93 km/h) | 123.45 mph (198.67 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
