Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/25-20 | 315/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.79 (680.5) | 28.68 (728.5) | 1.89 (48) 7.1% |
| Width inches (mm) | 13.58 (345) | 12.4 (315) | -1.18 (-30) -8.7% |
| Circum. inches (mm) | 84.17 (2137.85) | 90.1 (2288.65) | 5.94 (150.8) 7.1% |
| Sidewall Height inches (mm) | 3.4 (86.25) | 4.34 (110.25) | 0.94 (24) 27.8% |
| Revolutions per mile (km) | 752.78 (467.76) | 703.18 (436.94) | -49.6 (-30.82) -6.6% |
315/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.41 mph (34.46 km/h) |
| 25 mph (40.23 km/h) | 26.76 mph (43.07 km/h) |
| 30 mph (48.28 km/h) | 32.12 mph (51.69 km/h) |
| 35 mph (56.33 km/h) | 37.47 mph (60.3 km/h) |
| 40 mph (64.37 km/h) | 42.82 mph (68.91 km/h) |
| 45 mph (72.42 km/h) | 48.17 mph (77.53 km/h) |
| 50 mph (80.47 km/h) | 53.53 mph (86.14 km/h) |
| 55 mph (88.51 km/h) | 58.88 mph (94.76 km/h) |
| 60 mph (96.56 km/h) | 64.23 mph (103.37 km/h) |
| 65 mph (104.61 km/h) | 69.58 mph (111.99 km/h) |
| 70 mph (112.65 km/h) | 74.94 mph (120.6 km/h) |
| 75 mph (120.7 km/h) | 80.29 mph (129.21 km/h) |
| 80 mph (128.75 km/h) | 85.64 mph (137.83 km/h) |
| 85 mph (136.79 km/h) | 91 mph (146.44 km/h) |
| 90 mph (144.84 km/h) | 96.35 mph (155.06 km/h) |
| 95 mph (152.89 km/h) | 101.7 mph (163.67 km/h) |
| 100 mph (160.93 km/h) | 107.05 mph (172.29 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1789 | 2079 | 2239 | 2338 | 2444 | 2520 | 2604 | 2703 | 2840 | 2977 | 3130 | 3252 | 3472 | 3716 | 3906 | 4028 | 4097 | 4348 | 4698 | 5460 |
Better Fuel Economy Factory Ratios Increased Power
