Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/35-28 | 315/25-28 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.96 (938.7) | 34.2 (868.7) | -2.76 (-70) -7.5% |
| Width inches (mm) | 12.8 (325) | 12.4 (315) | -0.39 (-10) -3.1% |
| Circum. inches (mm) | 116.1 (2949.01) | 107.44 (2729.1) | -8.66 (-219.91) -7.5% |
| Sidewall Height inches (mm) | 4.48 (113.75) | 3.1 (78.75) | -1.38 (-35) -30.8% |
| Revolutions per mile (km) | 545.72 (339.1) | 589.7 (366.42) | 43.97 (27.32) 8.1% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.51 mph (29.79 km/h) |
| 25 mph (40.23 km/h) | 23.14 mph (37.23 km/h) |
| 30 mph (48.28 km/h) | 27.76 mph (44.68 km/h) |
| 35 mph (56.33 km/h) | 32.39 mph (52.13 km/h) |
| 40 mph (64.37 km/h) | 37.02 mph (59.57 km/h) |
| 45 mph (72.42 km/h) | 41.64 mph (67.02 km/h) |
| 50 mph (80.47 km/h) | 46.27 mph (74.47 km/h) |
| 55 mph (88.51 km/h) | 50.9 mph (81.91 km/h) |
| 60 mph (96.56 km/h) | 55.53 mph (89.36 km/h) |
| 65 mph (104.61 km/h) | 60.15 mph (96.81 km/h) |
| 70 mph (112.65 km/h) | 64.78 mph (104.25 km/h) |
| 75 mph (120.7 km/h) | 69.41 mph (111.7 km/h) |
| 80 mph (128.75 km/h) | 74.03 mph (119.15 km/h) |
| 85 mph (136.79 km/h) | 78.66 mph (126.59 km/h) |
| 90 mph (144.84 km/h) | 83.29 mph (134.04 km/h) |
| 95 mph (152.89 km/h) | 87.92 mph (141.49 km/h) |
| 100 mph (160.93 km/h) | 92.54 mph (148.93 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1501 | 1743 | 1877 | 1960 | 2050 | 2114 | 2184 | 2267 | 2382 | 2497 | 2625 | 2727 | 2912 | 3116 | 3276 | 3378 | 3436 | 3646 | 3940 | 4579 |
Better Fuel Economy Factory Ratios Increased Power
