Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/45-17 | 28/11.5-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.52 (724.3) | 28.04 (712.12) | -0.48 (-12.18) -1.7% |
| Width inches (mm) | 12.8 (325) | 11.5 (292) | -1.3 (-33) -10.2% |
| Circum. inches (mm) | 89.58 (2275.46) | 88.08 (2237.19) | -1.51 (-38.26) -1.7% |
| Sidewall Height inches (mm) | 5.76 (146.25) | 5.52 (140.16) | -0.24 (-6.09) -4.2% |
| Revolutions per mile (km) | 707.26 (439.47) | 719.36 (446.99) | 12.1 (7.52) 1.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.66 mph (31.65 km/h) |
| 25 mph (40.23 km/h) | 24.58 mph (39.56 km/h) |
| 30 mph (48.28 km/h) | 29.5 mph (47.47 km/h) |
| 35 mph (56.33 km/h) | 34.41 mph (55.38 km/h) |
| 40 mph (64.37 km/h) | 39.33 mph (63.29 km/h) |
| 45 mph (72.42 km/h) | 44.24 mph (71.2 km/h) |
| 50 mph (80.47 km/h) | 49.16 mph (79.11 km/h) |
| 55 mph (88.51 km/h) | 54.08 mph (87.03 km/h) |
| 60 mph (96.56 km/h) | 58.99 mph (94.94 km/h) |
| 65 mph (104.61 km/h) | 63.91 mph (102.85 km/h) |
| 70 mph (112.65 km/h) | 68.82 mph (110.76 km/h) |
| 75 mph (120.7 km/h) | 73.74 mph (118.67 km/h) |
| 80 mph (128.75 km/h) | 78.65 mph (126.58 km/h) |
| 85 mph (136.79 km/h) | 83.57 mph (134.49 km/h) |
| 90 mph (144.84 km/h) | 88.49 mph (142.41 km/h) |
| 95 mph (152.89 km/h) | 93.4 mph (150.32 km/h) |
| 100 mph (160.93 km/h) | 98.32 mph (158.23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1831 | 2127 | 2290 | 2392 | 2501 | 2578 | 2664 | 2765 | 2906 | 3046 | 3202 | 3326 | 3552 | 3801 | 3996 | 4121 | 4191 | 4448 | 4806 | 5585 |
Better Fuel Economy Factory Ratios Increased Power
