Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-23 | 405/30-28 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.2 (741.7) | 37.57 (954.2) | 8.37 (212.5) 28.7% |
| Width inches (mm) | 12.4 (315) | 15.94 (405) | 3.54 (90) 28.6% |
| Circum. inches (mm) | 91.74 (2330.12) | 118.02 (2997.71) | 26.28 (667.59) 28.7% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 4.78 (121.5) | 1.68 (42.75) 54.3% |
| Revolutions per mile (km) | 690.67 (429.16) | 536.86 (333.59) | -153.81 (-95.57) -22.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 25.73 mph (41.41 km/h) |
| 25 mph (40.23 km/h) | 32.16 mph (51.76 km/h) |
| 30 mph (48.28 km/h) | 38.6 mph (62.11 km/h) |
| 35 mph (56.33 km/h) | 45.03 mph (72.47 km/h) |
| 40 mph (64.37 km/h) | 51.46 mph (82.82 km/h) |
| 45 mph (72.42 km/h) | 57.89 mph (93.17 km/h) |
| 50 mph (80.47 km/h) | 64.33 mph (103.52 km/h) |
| 55 mph (88.51 km/h) | 70.76 mph (113.87 km/h) |
| 60 mph (96.56 km/h) | 77.19 mph (124.23 km/h) |
| 65 mph (104.61 km/h) | 83.62 mph (134.58 km/h) |
| 70 mph (112.65 km/h) | 90.06 mph (144.93 km/h) |
| 75 mph (120.7 km/h) | 96.49 mph (155.28 km/h) |
| 80 mph (128.75 km/h) | 102.92 mph (165.63 km/h) |
| 85 mph (136.79 km/h) | 109.35 mph (175.99 km/h) |
| 90 mph (144.84 km/h) | 115.79 mph (186.34 km/h) |
| 95 mph (152.89 km/h) | 122.22 mph (196.69 km/h) |
| 100 mph (160.93 km/h) | 128.65 mph (207.04 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1366 | 1587 | 1709 | 1785 | 1866 | 1924 | 1988 | 2064 | 2168 | 2273 | 2389 | 2482 | 2651 | 2837 | 2982 | 3075 | 3128 | 3320 | 3587 | 4168 |
Better Fuel Economy Factory Ratios Increased Power
