Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/30-20 | 335/55-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.15 (715) | 34.51 (876.5) | 6.36 (161.5) 22.6% |
| Width inches (mm) | 13.58 (345) | 13.19 (335) | -0.39 (-10) -2.9% |
| Circum. inches (mm) | 88.43 (2246.24) | 108.41 (2753.61) | 19.98 (507.37) 22.6% |
| Sidewall Height inches (mm) | 4.07 (103.5) | 7.25 (184.25) | 3.18 (80.75) 78% |
| Revolutions per mile (km) | 716.46 (445.19) | 584.45 (363.16) | -132.01 (-82.03) -18.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.52 mph (39.46 km/h) |
| 25 mph (40.23 km/h) | 30.65 mph (49.32 km/h) |
| 30 mph (48.28 km/h) | 36.78 mph (59.19 km/h) |
| 35 mph (56.33 km/h) | 42.91 mph (69.05 km/h) |
| 40 mph (64.37 km/h) | 49.03 mph (78.91 km/h) |
| 45 mph (72.42 km/h) | 55.16 mph (88.78 km/h) |
| 50 mph (80.47 km/h) | 61.29 mph (98.64 km/h) |
| 55 mph (88.51 km/h) | 67.42 mph (108.51 km/h) |
| 60 mph (96.56 km/h) | 73.55 mph (118.37 km/h) |
| 65 mph (104.61 km/h) | 79.68 mph (128.24 km/h) |
| 70 mph (112.65 km/h) | 85.81 mph (138.1 km/h) |
| 75 mph (120.7 km/h) | 91.94 mph (147.96 km/h) |
| 80 mph (128.75 km/h) | 98.07 mph (157.83 km/h) |
| 85 mph (136.79 km/h) | 104.2 mph (167.69 km/h) |
| 90 mph (144.84 km/h) | 110.33 mph (177.56 km/h) |
| 95 mph (152.89 km/h) | 116.46 mph (187.42 km/h) |
| 100 mph (160.93 km/h) | 122.59 mph (197.29 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1487 | 1728 | 1861 | 1943 | 2032 | 2095 | 2165 | 2247 | 2361 | 2475 | 2601 | 2702 | 2886 | 3089 | 3247 | 3348 | 3405 | 3614 | 3905 | 4538 |
Better Fuel Economy Factory Ratios Increased Power
