Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/35-20 | 265/30-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.2 (665.5) | 26.26 (667) | 0.06 (1.5) 0.2% |
| Width inches (mm) | 8.86 (225) | 10.43 (265) | 1.57 (40) 17.8% |
| Circum. inches (mm) | 82.31 (2090.73) | 82.5 (2095.44) | 0.19 (4.71) 0.2% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 3.13 (79.5) | 0.03 (0.75) 1% |
| Revolutions per mile (km) | 769.75 (478.3) | 768.02 (477.23) | -1.73 (-1.08) -0.2% |
265/30-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.05 mph (32.26 km/h) |
| 25 mph (40.23 km/h) | 25.06 mph (40.32 km/h) |
| 30 mph (48.28 km/h) | 30.07 mph (48.39 km/h) |
| 35 mph (56.33 km/h) | 35.08 mph (56.45 km/h) |
| 40 mph (64.37 km/h) | 40.09 mph (64.52 km/h) |
| 45 mph (72.42 km/h) | 45.1 mph (72.58 km/h) |
| 50 mph (80.47 km/h) | 50.11 mph (80.65 km/h) |
| 55 mph (88.51 km/h) | 55.12 mph (88.71 km/h) |
| 60 mph (96.56 km/h) | 60.14 mph (96.78 km/h) |
| 65 mph (104.61 km/h) | 65.15 mph (104.84 km/h) |
| 70 mph (112.65 km/h) | 70.16 mph (112.91 km/h) |
| 75 mph (120.7 km/h) | 75.17 mph (120.97 km/h) |
| 80 mph (128.75 km/h) | 80.18 mph (129.04 km/h) |
| 85 mph (136.79 km/h) | 85.19 mph (137.1 km/h) |
| 90 mph (144.84 km/h) | 90.2 mph (145.17 km/h) |
| 95 mph (152.89 km/h) | 95.21 mph (153.23 km/h) |
| 100 mph (160.93 km/h) | 100.23 mph (161.3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1954 | 2271 | 2445 | 2553 | 2670 | 2753 | 2844 | 2952 | 3102 | 3252 | 3418 | 3551 | 3792 | 4059 | 4267 | 4400 | 4474 | 4749 | 5132 | 5963 |
Better Fuel Economy Factory Ratios Increased Power
