Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/35-28 | 315/30-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.96 (938.7) | 31.44 (798.6) | -5.52 (-140.1) -14.9% |
| Width inches (mm) | 12.8 (325) | 12.4 (315) | -0.39 (-10) -3.1% |
| Circum. inches (mm) | 116.1 (2949.01) | 98.77 (2508.88) | -17.33 (-440.14) -14.9% |
| Sidewall Height inches (mm) | 4.48 (113.75) | 3.72 (94.5) | -0.76 (-19.25) -16.9% |
| Revolutions per mile (km) | 545.72 (339.1) | 641.46 (398.58) | 95.74 (59.49) 17.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.02 mph (27.38 km/h) |
| 25 mph (40.23 km/h) | 21.27 mph (34.23 km/h) |
| 30 mph (48.28 km/h) | 25.52 mph (41.07 km/h) |
| 35 mph (56.33 km/h) | 29.78 mph (47.92 km/h) |
| 40 mph (64.37 km/h) | 34.03 mph (54.77 km/h) |
| 45 mph (72.42 km/h) | 38.28 mph (61.61 km/h) |
| 50 mph (80.47 km/h) | 42.54 mph (68.46 km/h) |
| 55 mph (88.51 km/h) | 46.79 mph (75.3 km/h) |
| 60 mph (96.56 km/h) | 51.05 mph (82.15 km/h) |
| 65 mph (104.61 km/h) | 55.3 mph (88.99 km/h) |
| 70 mph (112.65 km/h) | 59.55 mph (95.84 km/h) |
| 75 mph (120.7 km/h) | 63.81 mph (102.69 km/h) |
| 80 mph (128.75 km/h) | 68.06 mph (109.53 km/h) |
| 85 mph (136.79 km/h) | 72.31 mph (116.38 km/h) |
| 90 mph (144.84 km/h) | 76.57 mph (123.22 km/h) |
| 95 mph (152.89 km/h) | 80.82 mph (130.07 km/h) |
| 100 mph (160.93 km/h) | 85.08 mph (136.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1632 | 1896 | 2042 | 2133 | 2230 | 2299 | 2376 | 2466 | 2591 | 2716 | 2855 | 2966 | 3168 | 3390 | 3563 | 3675 | 3737 | 3966 | 4286 | 4981 |
Better Fuel Economy Factory Ratios Increased Power
