Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/40-20 | 315/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.35 (720) | 28.68 (728.5) | 0.33 (8.5) 1.2% |
| Width inches (mm) | 10.43 (265) | 12.4 (315) | 1.97 (50) 18.9% |
| Circum. inches (mm) | 89.05 (2261.95) | 90.1 (2288.65) | 1.05 (26.7) 1.2% |
| Sidewall Height inches (mm) | 4.17 (106) | 4.34 (110.25) | 0.17 (4.25) 4% |
| Revolutions per mile (km) | 711.49 (442.1) | 703.18 (436.94) | -8.3 (-5.16) -1.2% |
315/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.24 mph (32.57 km/h) |
| 25 mph (40.23 km/h) | 25.3 mph (40.71 km/h) |
| 30 mph (48.28 km/h) | 30.35 mph (48.85 km/h) |
| 35 mph (56.33 km/h) | 35.41 mph (56.99 km/h) |
| 40 mph (64.37 km/h) | 40.47 mph (65.13 km/h) |
| 45 mph (72.42 km/h) | 45.53 mph (73.28 km/h) |
| 50 mph (80.47 km/h) | 50.59 mph (81.42 km/h) |
| 55 mph (88.51 km/h) | 55.65 mph (89.56 km/h) |
| 60 mph (96.56 km/h) | 60.71 mph (97.7 km/h) |
| 65 mph (104.61 km/h) | 65.77 mph (105.84 km/h) |
| 70 mph (112.65 km/h) | 70.83 mph (113.98 km/h) |
| 75 mph (120.7 km/h) | 75.89 mph (122.13 km/h) |
| 80 mph (128.75 km/h) | 80.94 mph (130.27 km/h) |
| 85 mph (136.79 km/h) | 86 mph (138.41 km/h) |
| 90 mph (144.84 km/h) | 91.06 mph (146.55 km/h) |
| 95 mph (152.89 km/h) | 96.12 mph (154.69 km/h) |
| 100 mph (160.93 km/h) | 101.18 mph (162.83 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
