Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 255/45-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 33.04 (839.1) | 0.43 (10.9) 1.3% |
| Width inches (mm) | 12.01 (305) | 10.04 (255) | -1.97 (-50) -16.4% |
| Circum. inches (mm) | 102.44 (2601.87) | 103.78 (2636.11) | 1.35 (34.24) 1.3% |
| Sidewall Height inches (mm) | 4.8 (122) | 4.52 (114.75) | -0.29 (-7.25) -5.9% |
| Revolutions per mile (km) | 618.53 (384.34) | 610.5 (379.35) | -8.03 (-4.99) -1.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.26 mph (32.61 km/h) |
| 25 mph (40.23 km/h) | 25.33 mph (40.76 km/h) |
| 30 mph (48.28 km/h) | 30.39 mph (48.92 km/h) |
| 35 mph (56.33 km/h) | 35.46 mph (57.07 km/h) |
| 40 mph (64.37 km/h) | 40.53 mph (65.22 km/h) |
| 45 mph (72.42 km/h) | 45.59 mph (73.37 km/h) |
| 50 mph (80.47 km/h) | 50.66 mph (81.53 km/h) |
| 55 mph (88.51 km/h) | 55.72 mph (89.68 km/h) |
| 60 mph (96.56 km/h) | 60.79 mph (97.83 km/h) |
| 65 mph (104.61 km/h) | 65.86 mph (105.98 km/h) |
| 70 mph (112.65 km/h) | 70.92 mph (114.14 km/h) |
| 75 mph (120.7 km/h) | 75.99 mph (122.29 km/h) |
| 80 mph (128.75 km/h) | 81.05 mph (130.44 km/h) |
| 85 mph (136.79 km/h) | 86.12 mph (138.59 km/h) |
| 90 mph (144.84 km/h) | 91.18 mph (146.75 km/h) |
| 95 mph (152.89 km/h) | 96.25 mph (154.9 km/h) |
| 100 mph (160.93 km/h) | 101.32 mph (163.05 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1554 | 1805 | 1944 | 2030 | 2122 | 2188 | 2261 | 2347 | 2466 | 2585 | 2717 | 2823 | 3015 | 3226 | 3391 | 3497 | 3557 | 3775 | 4079 | 4740 |
Better Fuel Economy Factory Ratios Increased Power
