Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/75-17 | 325/75-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 35.6 (904.3) | 36.19 (919.3) | 0.59 (15) 1.7% |
| Width inches (mm) | 12.4 (315) | 12.8 (325) | 0.39 (10) 3.2% |
| Circum. inches (mm) | 111.85 (2840.94) | 113.7 (2888.07) | 1.86 (47.12) 1.7% |
| Sidewall Height inches (mm) | 9.3 (236.25) | 9.6 (243.75) | 0.3 (7.5) 3.2% |
| Revolutions per mile (km) | 566.48 (352) | 557.24 (346.25) | -9.24 (-5.74) -1.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.33 mph (32.72 km/h) |
| 25 mph (40.23 km/h) | 25.41 mph (40.9 km/h) |
| 30 mph (48.28 km/h) | 30.5 mph (49.08 km/h) |
| 35 mph (56.33 km/h) | 35.58 mph (57.26 km/h) |
| 40 mph (64.37 km/h) | 40.66 mph (65.44 km/h) |
| 45 mph (72.42 km/h) | 45.75 mph (73.62 km/h) |
| 50 mph (80.47 km/h) | 50.83 mph (81.8 km/h) |
| 55 mph (88.51 km/h) | 55.91 mph (89.98 km/h) |
| 60 mph (96.56 km/h) | 61 mph (98.16 km/h) |
| 65 mph (104.61 km/h) | 66.08 mph (106.34 km/h) |
| 70 mph (112.65 km/h) | 71.16 mph (114.52 km/h) |
| 75 mph (120.7 km/h) | 76.24 mph (122.7 km/h) |
| 80 mph (128.75 km/h) | 81.33 mph (130.88 km/h) |
| 85 mph (136.79 km/h) | 86.41 mph (139.06 km/h) |
| 90 mph (144.84 km/h) | 91.49 mph (147.24 km/h) |
| 95 mph (152.89 km/h) | 96.58 mph (155.42 km/h) |
| 100 mph (160.93 km/h) | 101.66 mph (163.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1418 | 1647 | 1774 | 1853 | 1937 | 1997 | 2064 | 2142 | 2251 | 2359 | 2480 | 2577 | 2752 | 2945 | 3096 | 3192 | 3246 | 3446 | 3723 | 4327 |
Better Fuel Economy Factory Ratios Increased Power
