Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/30-20 | 225/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.31 (643) | 25.86 (656.8) | 0.54 (13.8) 2.1% |
| Width inches (mm) | 8.86 (225) | 8.86 (225) | 0 (0) 0% |
| Circum. inches (mm) | 79.53 (2020.04) | 81.24 (2063.4) | 1.71 (43.35) 2.1% |
| Sidewall Height inches (mm) | 2.66 (67.5) | 4.43 (112.5) | 1.77 (45) 66.7% |
| Revolutions per mile (km) | 796.69 (495.04) | 779.95 (484.64) | -16.74 (-10.4) -2.1% |
225/50-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.43 mph (32.88 km/h) |
| 25 mph (40.23 km/h) | 25.54 mph (41.1 km/h) |
| 30 mph (48.28 km/h) | 30.64 mph (49.32 km/h) |
| 35 mph (56.33 km/h) | 35.75 mph (57.54 km/h) |
| 40 mph (64.37 km/h) | 40.86 mph (65.76 km/h) |
| 45 mph (72.42 km/h) | 45.97 mph (73.97 km/h) |
| 50 mph (80.47 km/h) | 51.07 mph (82.19 km/h) |
| 55 mph (88.51 km/h) | 56.18 mph (90.41 km/h) |
| 60 mph (96.56 km/h) | 61.29 mph (98.63 km/h) |
| 65 mph (104.61 km/h) | 66.4 mph (106.85 km/h) |
| 70 mph (112.65 km/h) | 71.5 mph (115.07 km/h) |
| 75 mph (120.7 km/h) | 76.61 mph (123.29 km/h) |
| 80 mph (128.75 km/h) | 81.72 mph (131.51 km/h) |
| 85 mph (136.79 km/h) | 86.82 mph (139.73 km/h) |
| 90 mph (144.84 km/h) | 91.93 mph (147.95 km/h) |
| 95 mph (152.89 km/h) | 97.04 mph (156.17 km/h) |
| 100 mph (160.93 km/h) | 102.15 mph (164.39 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1985 | 2306 | 2483 | 2593 | 2711 | 2796 | 2889 | 2998 | 3150 | 3302 | 3471 | 3606 | 3851 | 4122 | 4333 | 4468 | 4544 | 4823 | 5211 | 6056 |
Better Fuel Economy Factory Ratios Increased Power
