Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/40-19 | 315/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.66 (702.6) | 28.68 (728.5) | 1.02 (25.9) 3.7% |
| Width inches (mm) | 10.83 (275) | 12.4 (315) | 1.57 (40) 14.5% |
| Circum. inches (mm) | 86.9 (2207.28) | 90.1 (2288.65) | 3.2 (81.37) 3.7% |
| Sidewall Height inches (mm) | 4.33 (110) | 4.34 (110.25) | 0.01 (0.25) 0.2% |
| Revolutions per mile (km) | 729.11 (453.04) | 703.18 (436.94) | -25.92 (-16.11) -3.6% |
315/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.74 mph (33.37 km/h) |
| 25 mph (40.23 km/h) | 25.92 mph (41.72 km/h) |
| 30 mph (48.28 km/h) | 31.11 mph (50.06 km/h) |
| 35 mph (56.33 km/h) | 36.29 mph (58.4 km/h) |
| 40 mph (64.37 km/h) | 41.47 mph (66.75 km/h) |
| 45 mph (72.42 km/h) | 46.66 mph (75.09 km/h) |
| 50 mph (80.47 km/h) | 51.84 mph (83.43 km/h) |
| 55 mph (88.51 km/h) | 57.03 mph (91.78 km/h) |
| 60 mph (96.56 km/h) | 62.21 mph (100.12 km/h) |
| 65 mph (104.61 km/h) | 67.4 mph (108.46 km/h) |
| 70 mph (112.65 km/h) | 72.58 mph (116.81 km/h) |
| 75 mph (120.7 km/h) | 77.76 mph (125.15 km/h) |
| 80 mph (128.75 km/h) | 82.95 mph (133.49 km/h) |
| 85 mph (136.79 km/h) | 88.13 mph (141.84 km/h) |
| 90 mph (144.84 km/h) | 93.32 mph (150.18 km/h) |
| 95 mph (152.89 km/h) | 98.5 mph (158.52 km/h) |
| 100 mph (160.93 km/h) | 103.69 mph (166.87 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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
