Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/45-20 | 225/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.68 (728.5) | 28.52 (724.3) | -0.17 (-4.2) -0.6% |
| Width inches (mm) | 9.65 (245) | 8.86 (225) | -0.79 (-20) -8.2% |
| Circum. inches (mm) | 90.1 (2288.65) | 89.58 (2275.46) | -0.52 (-13.19) -0.6% |
| Sidewall Height inches (mm) | 4.34 (110.25) | 5.76 (146.25) | 1.42 (36) 32.7% |
| Revolutions per mile (km) | 703.18 (436.94) | 707.26 (439.47) | 4.08 (2.53) 0.6% |
225/65-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.88 mph (32 km/h) |
| 25 mph (40.23 km/h) | 24.86 mph (40 km/h) |
| 30 mph (48.28 km/h) | 29.83 mph (48 km/h) |
| 35 mph (56.33 km/h) | 34.8 mph (56 km/h) |
| 40 mph (64.37 km/h) | 39.77 mph (64 km/h) |
| 45 mph (72.42 km/h) | 44.74 mph (72 km/h) |
| 50 mph (80.47 km/h) | 49.71 mph (80 km/h) |
| 55 mph (88.51 km/h) | 54.68 mph (88 km/h) |
| 60 mph (96.56 km/h) | 59.65 mph (96 km/h) |
| 65 mph (104.61 km/h) | 64.63 mph (104 km/h) |
| 70 mph (112.65 km/h) | 69.6 mph (112 km/h) |
| 75 mph (120.7 km/h) | 74.57 mph (120.01 km/h) |
| 80 mph (128.75 km/h) | 79.54 mph (128.01 km/h) |
| 85 mph (136.79 km/h) | 84.51 mph (136.01 km/h) |
| 90 mph (144.84 km/h) | 89.48 mph (144.01 km/h) |
| 95 mph (152.89 km/h) | 94.45 mph (152.01 km/h) |
| 100 mph (160.93 km/h) | 99.42 mph (160.01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1800 | 2091 | 2252 | 2351 | 2459 | 2535 | 2619 | 2719 | 2857 | 2995 | 3148 | 3270 | 3492 | 3738 | 3929 | 4052 | 4121 | 4373 | 4726 | 5491 |
Better Fuel Economy Factory Ratios Increased Power
