Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/45-20 | 275/30-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.74 (755.5) | 30.5 (774.6) | 0.75 (19.1) 2.5% |
| Width inches (mm) | 10.83 (275) | 10.83 (275) | 0 (0) 0% |
| Circum. inches (mm) | 93.44 (2373.47) | 95.81 (2433.48) | 2.36 (60) 2.5% |
| Sidewall Height inches (mm) | 4.87 (123.75) | 3.25 (82.5) | -1.62 (-41.25) -33.3% |
| Revolutions per mile (km) | 678.05 (421.32) | 661.34 (410.93) | -16.72 (-10.39) -2.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.51 mph (33 km/h) |
| 25 mph (40.23 km/h) | 25.63 mph (41.25 km/h) |
| 30 mph (48.28 km/h) | 30.76 mph (49.5 km/h) |
| 35 mph (56.33 km/h) | 35.88 mph (57.75 km/h) |
| 40 mph (64.37 km/h) | 41.01 mph (66 km/h) |
| 45 mph (72.42 km/h) | 46.14 mph (74.25 km/h) |
| 50 mph (80.47 km/h) | 51.26 mph (82.5 km/h) |
| 55 mph (88.51 km/h) | 56.39 mph (90.75 km/h) |
| 60 mph (96.56 km/h) | 61.52 mph (99 km/h) |
| 65 mph (104.61 km/h) | 66.64 mph (107.25 km/h) |
| 70 mph (112.65 km/h) | 71.77 mph (115.5 km/h) |
| 75 mph (120.7 km/h) | 76.9 mph (123.75 km/h) |
| 80 mph (128.75 km/h) | 82.02 mph (132 km/h) |
| 85 mph (136.79 km/h) | 87.15 mph (140.25 km/h) |
| 90 mph (144.84 km/h) | 92.28 mph (148.5 km/h) |
| 95 mph (152.89 km/h) | 97.4 mph (156.75 km/h) |
| 100 mph (160.93 km/h) | 102.53 mph (165 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1683 | 1955 | 2106 | 2199 | 2299 | 2370 | 2449 | 2542 | 2671 | 2800 | 2943 | 3058 | 3266 | 3495 | 3674 | 3788 | 3853 | 4089 | 4419 | 5135 |
Better Fuel Economy Factory Ratios Increased Power
