Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 325/80-15 | 335/80-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.47 (901) | 38.1 (967.8) | 2.63 (66.8) 7.4% |
| Width inches (mm) | 12.8 (325) | 13.19 (335) | 0.39 (10) 3.1% |
| Circum. inches (mm) | 111.44 (2830.57) | 119.7 (3040.43) | 8.26 (209.86) 7.4% |
| Sidewall Height inches (mm) | 10.24 (260) | 10.55 (268) | 0.31 (8) 3.1% |
| Revolutions per mile (km) | 568.56 (353.28) | 529.31 (328.9) | -39.24 (-24.38) -6.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.48 mph (34.57 km/h) |
| 25 mph (40.23 km/h) | 26.85 mph (43.22 km/h) |
| 30 mph (48.28 km/h) | 32.22 mph (51.86 km/h) |
| 35 mph (56.33 km/h) | 37.59 mph (60.5 km/h) |
| 40 mph (64.37 km/h) | 42.97 mph (69.15 km/h) |
| 45 mph (72.42 km/h) | 48.34 mph (77.79 km/h) |
| 50 mph (80.47 km/h) | 53.71 mph (86.43 km/h) |
| 55 mph (88.51 km/h) | 59.08 mph (95.08 km/h) |
| 60 mph (96.56 km/h) | 64.45 mph (103.72 km/h) |
| 65 mph (104.61 km/h) | 69.82 mph (112.36 km/h) |
| 70 mph (112.65 km/h) | 75.19 mph (121.01 km/h) |
| 75 mph (120.7 km/h) | 80.56 mph (129.65 km/h) |
| 80 mph (128.75 km/h) | 85.93 mph (138.29 km/h) |
| 85 mph (136.79 km/h) | 91.3 mph (146.94 km/h) |
| 90 mph (144.84 km/h) | 96.67 mph (155.58 km/h) |
| 95 mph (152.89 km/h) | 102.04 mph (164.22 km/h) |
| 100 mph (160.93 km/h) | 107.41 mph (172.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1347 | 1565 | 1685 | 1760 | 1840 | 1897 | 1960 | 2035 | 2138 | 2241 | 2356 | 2448 | 2614 | 2797 | 2940 | 3032 | 3084 | 3273 | 3537 | 4110 |
Better Fuel Economy Factory Ratios Increased Power
