Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/90-18 | 225/65-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.69 (754.2) | 28.52 (724.3) | -1.18 (-29.9) -4% |
| Width inches (mm) | 6.5 (165) | 8.86 (225) | 2.36 (60) 36.4% |
| Circum. inches (mm) | 93.28 (2369.39) | 89.58 (2275.46) | -3.7 (-93.93) -4% |
| Sidewall Height inches (mm) | 5.85 (148.5) | 5.76 (146.25) | -0.09 (-2.25) -1.5% |
| Revolutions per mile (km) | 679.22 (422.05) | 707.26 (439.47) | 28.04 (17.42) 4.1% |
225/65-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.21 mph (30.91 km/h) |
| 25 mph (40.23 km/h) | 24.01 mph (38.64 km/h) |
| 30 mph (48.28 km/h) | 28.81 mph (46.37 km/h) |
| 35 mph (56.33 km/h) | 33.61 mph (54.09 km/h) |
| 40 mph (64.37 km/h) | 38.41 mph (61.82 km/h) |
| 45 mph (72.42 km/h) | 43.22 mph (69.55 km/h) |
| 50 mph (80.47 km/h) | 48.02 mph (77.28 km/h) |
| 55 mph (88.51 km/h) | 52.82 mph (85 km/h) |
| 60 mph (96.56 km/h) | 57.62 mph (92.73 km/h) |
| 65 mph (104.61 km/h) | 62.42 mph (100.46 km/h) |
| 70 mph (112.65 km/h) | 67.22 mph (108.19 km/h) |
| 75 mph (120.7 km/h) | 72.03 mph (115.92 km/h) |
| 80 mph (128.75 km/h) | 76.83 mph (123.64 km/h) |
| 85 mph (136.79 km/h) | 81.63 mph (131.37 km/h) |
| 90 mph (144.84 km/h) | 86.43 mph (139.1 km/h) |
| 95 mph (152.89 km/h) | 91.23 mph (146.83 km/h) |
| 100 mph (160.93 km/h) | 96.04 mph (154.55 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
