Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/35-28 | 305/45-28 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 36.96 (938.7) | 38.81 (985.7) | 1.85 (47) 5% |
| Width inches (mm) | 12.8 (325) | 12.01 (305) | -0.79 (-20) -6.2% |
| Circum. inches (mm) | 116.1 (2949.01) | 121.92 (3096.67) | 5.81 (147.65) 5% |
| Sidewall Height inches (mm) | 4.48 (113.75) | 5.4 (137.25) | 0.93 (23.5) 20.7% |
| Revolutions per mile (km) | 545.72 (339.1) | 519.7 (322.93) | -26.02 (-16.17) -4.8% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21 mph (33.8 km/h) |
| 25 mph (40.23 km/h) | 26.25 mph (42.25 km/h) |
| 30 mph (48.28 km/h) | 31.5 mph (50.7 km/h) |
| 35 mph (56.33 km/h) | 36.75 mph (59.15 km/h) |
| 40 mph (64.37 km/h) | 42 mph (67.6 km/h) |
| 45 mph (72.42 km/h) | 47.25 mph (76.05 km/h) |
| 50 mph (80.47 km/h) | 52.5 mph (84.5 km/h) |
| 55 mph (88.51 km/h) | 57.75 mph (92.95 km/h) |
| 60 mph (96.56 km/h) | 63 mph (101.4 km/h) |
| 65 mph (104.61 km/h) | 68.25 mph (109.85 km/h) |
| 70 mph (112.65 km/h) | 73.5 mph (118.29 km/h) |
| 75 mph (120.7 km/h) | 78.76 mph (126.74 km/h) |
| 80 mph (128.75 km/h) | 84.01 mph (135.19 km/h) |
| 85 mph (136.79 km/h) | 89.26 mph (143.64 km/h) |
| 90 mph (144.84 km/h) | 94.51 mph (152.09 km/h) |
| 95 mph (152.89 km/h) | 99.76 mph (160.54 km/h) |
| 100 mph (160.93 km/h) | 105.01 mph (168.99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1323 | 1536 | 1655 | 1728 | 1807 | 1863 | 1925 | 1998 | 2099 | 2200 | 2313 | 2403 | 2566 | 2746 | 2887 | 2977 | 3028 | 3213 | 3472 | 4035 |
Better Fuel Economy Factory Ratios Increased Power
