Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/35-28 | 315/30-28 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.96 (938.7) | 35.44 (900.2) | -1.52 (-38.5) -4.1% |
| Width inches (mm) | 12.8 (325) | 12.4 (315) | -0.39 (-10) -3.1% |
| Circum. inches (mm) | 116.1 (2949.01) | 111.34 (2828.06) | -4.76 (-120.95) -4.1% |
| 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) | 569.06 (353.6) | 23.34 (14.5) 4.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.18 mph (30.87 km/h) |
| 25 mph (40.23 km/h) | 23.97 mph (38.58 km/h) |
| 30 mph (48.28 km/h) | 28.77 mph (46.3 km/h) |
| 35 mph (56.33 km/h) | 33.56 mph (54.02 km/h) |
| 40 mph (64.37 km/h) | 38.36 mph (61.73 km/h) |
| 45 mph (72.42 km/h) | 43.15 mph (69.45 km/h) |
| 50 mph (80.47 km/h) | 47.95 mph (77.17 km/h) |
| 55 mph (88.51 km/h) | 52.74 mph (84.88 km/h) |
| 60 mph (96.56 km/h) | 57.54 mph (92.6 km/h) |
| 65 mph (104.61 km/h) | 62.33 mph (100.32 km/h) |
| 70 mph (112.65 km/h) | 67.13 mph (108.03 km/h) |
| 75 mph (120.7 km/h) | 71.92 mph (115.75 km/h) |
| 80 mph (128.75 km/h) | 76.72 mph (123.47 km/h) |
| 85 mph (136.79 km/h) | 81.51 mph (131.18 km/h) |
| 90 mph (144.84 km/h) | 86.31 mph (138.9 km/h) |
| 95 mph (152.89 km/h) | 91.1 mph (146.62 km/h) |
| 100 mph (160.93 km/h) | 95.9 mph (154.33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1448 | 1682 | 1812 | 1892 | 1978 | 2040 | 2108 | 2188 | 2299 | 2409 | 2533 | 2631 | 2810 | 3007 | 3161 | 3260 | 3315 | 3519 | 3802 | 4418 |
Better Fuel Economy Factory Ratios Increased Power
