Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 285/45-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 34.1 (866.1) | 1.49 (37.9) 4.6% |
| Width inches (mm) | 12.01 (305) | 11.22 (285) | -0.79 (-20) -6.6% |
| Circum. inches (mm) | 102.44 (2601.87) | 107.12 (2720.93) | 4.69 (119.07) 4.6% |
| Sidewall Height inches (mm) | 4.8 (122) | 5.05 (128.25) | 0.25 (6.25) 5.1% |
| Revolutions per mile (km) | 618.53 (384.34) | 591.47 (367.52) | -27.07 (-16.82) -4.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.92 mph (33.66 km/h) |
| 25 mph (40.23 km/h) | 26.14 mph (42.07 km/h) |
| 30 mph (48.28 km/h) | 31.37 mph (50.49 km/h) |
| 35 mph (56.33 km/h) | 36.6 mph (58.9 km/h) |
| 40 mph (64.37 km/h) | 41.83 mph (67.32 km/h) |
| 45 mph (72.42 km/h) | 47.06 mph (75.73 km/h) |
| 50 mph (80.47 km/h) | 52.29 mph (84.15 km/h) |
| 55 mph (88.51 km/h) | 57.52 mph (92.56 km/h) |
| 60 mph (96.56 km/h) | 62.75 mph (100.98 km/h) |
| 65 mph (104.61 km/h) | 67.97 mph (109.39 km/h) |
| 70 mph (112.65 km/h) | 73.2 mph (117.81 km/h) |
| 75 mph (120.7 km/h) | 78.43 mph (126.22 km/h) |
| 80 mph (128.75 km/h) | 83.66 mph (134.64 km/h) |
| 85 mph (136.79 km/h) | 88.89 mph (143.05 km/h) |
| 90 mph (144.84 km/h) | 94.12 mph (151.47 km/h) |
| 95 mph (152.89 km/h) | 99.35 mph (159.88 km/h) |
| 100 mph (160.93 km/h) | 104.58 mph (168.3 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1505 | 1749 | 1883 | 1966 | 2056 | 2120 | 2191 | 2274 | 2389 | 2504 | 2632 | 2735 | 2921 | 3126 | 3286 | 3388 | 3446 | 3657 | 3952 | 4592 |
Better Fuel Economy Factory Ratios Increased Power
