Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/40-19 | 315/35-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.92 (734.6) | 28.68 (728.5) | -0.24 (-6.1) -0.8% |
| Width inches (mm) | 12.4 (315) | 12.4 (315) | 0 (0) 0% |
| Circum. inches (mm) | 90.86 (2307.81) | 90.1 (2288.65) | -0.75 (-19.16) -0.8% |
| Sidewall Height inches (mm) | 4.96 (126) | 4.34 (110.25) | -0.62 (-15.75) -12.5% |
| Revolutions per mile (km) | 697.35 (433.31) | 703.18 (436.94) | 5.84 (3.63) 0.8% |
315/35-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.83 mph (31.92 km/h) |
| 25 mph (40.23 km/h) | 24.79 mph (39.9 km/h) |
| 30 mph (48.28 km/h) | 29.75 mph (47.88 km/h) |
| 35 mph (56.33 km/h) | 34.71 mph (55.86 km/h) |
| 40 mph (64.37 km/h) | 39.67 mph (63.84 km/h) |
| 45 mph (72.42 km/h) | 44.63 mph (71.82 km/h) |
| 50 mph (80.47 km/h) | 49.58 mph (79.8 km/h) |
| 55 mph (88.51 km/h) | 54.54 mph (87.78 km/h) |
| 60 mph (96.56 km/h) | 59.5 mph (95.76 km/h) |
| 65 mph (104.61 km/h) | 64.46 mph (103.74 km/h) |
| 70 mph (112.65 km/h) | 69.42 mph (111.72 km/h) |
| 75 mph (120.7 km/h) | 74.38 mph (119.7 km/h) |
| 80 mph (128.75 km/h) | 79.34 mph (127.68 km/h) |
| 85 mph (136.79 km/h) | 84.29 mph (135.66 km/h) |
| 90 mph (144.84 km/h) | 89.25 mph (143.64 km/h) |
| 95 mph (152.89 km/h) | 94.21 mph (151.62 km/h) |
| 100 mph (160.93 km/h) | 99.17 mph (159.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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
