Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/35-23 | 405/30-26 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 31.41 (797.7) | 35.57 (903.4) | 4.16 (105.7) 13.3% |
| Width inches (mm) | 12.01 (305) | 15.94 (405) | 3.94 (100) 32.8% |
| Circum. inches (mm) | 98.66 (2506.05) | 111.74 (2838.11) | 13.07 (332.07) 13.3% |
| Sidewall Height inches (mm) | 4.2 (106.75) | 4.78 (121.5) | 0.58 (14.75) 13.8% |
| Revolutions per mile (km) | 642.18 (399.03) | 567.05 (352.35) | -75.14 (-46.69) -11.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.65 mph (36.45 km/h) |
| 25 mph (40.23 km/h) | 28.31 mph (45.56 km/h) |
| 30 mph (48.28 km/h) | 33.98 mph (54.68 km/h) |
| 35 mph (56.33 km/h) | 39.64 mph (63.79 km/h) |
| 40 mph (64.37 km/h) | 45.3 mph (72.9 km/h) |
| 45 mph (72.42 km/h) | 50.96 mph (82.02 km/h) |
| 50 mph (80.47 km/h) | 56.63 mph (91.13 km/h) |
| 55 mph (88.51 km/h) | 62.29 mph (100.24 km/h) |
| 60 mph (96.56 km/h) | 67.95 mph (109.36 km/h) |
| 65 mph (104.61 km/h) | 73.61 mph (118.47 km/h) |
| 70 mph (112.65 km/h) | 79.28 mph (127.58 km/h) |
| 75 mph (120.7 km/h) | 84.94 mph (136.69 km/h) |
| 80 mph (128.75 km/h) | 90.6 mph (145.81 km/h) |
| 85 mph (136.79 km/h) | 96.26 mph (154.92 km/h) |
| 90 mph (144.84 km/h) | 101.93 mph (164.03 km/h) |
| 95 mph (152.89 km/h) | 107.59 mph (173.15 km/h) |
| 100 mph (160.93 km/h) | 113.25 mph (182.26 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1443 | 1676 | 1805 | 1885 | 1971 | 2033 | 2100 | 2180 | 2290 | 2401 | 2524 | 2622 | 2800 | 2997 | 3150 | 3248 | 3304 | 3506 | 3789 | 4403 |
Better Fuel Economy Factory Ratios Increased Power
