Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/35-19 | 315/40-19 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.51 (724.1) | 28.92 (734.6) | 0.41 (10.5) 1.5% |
| Width inches (mm) | 13.58 (345) | 12.4 (315) | -1.18 (-30) -8.7% |
| Circum. inches (mm) | 89.56 (2274.83) | 90.86 (2307.81) | 1.3 (32.99) 1.5% |
| Sidewall Height inches (mm) | 4.75 (120.75) | 4.96 (126) | 0.21 (5.25) 4.3% |
| Revolutions per mile (km) | 707.46 (439.59) | 697.35 (433.31) | -10.11 (-6.28) -1.4% |
315/40-19 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.29 mph (32.65 km/h) |
| 25 mph (40.23 km/h) | 25.36 mph (40.82 km/h) |
| 30 mph (48.28 km/h) | 30.44 mph (48.98 km/h) |
| 35 mph (56.33 km/h) | 35.51 mph (57.14 km/h) |
| 40 mph (64.37 km/h) | 40.58 mph (65.31 km/h) |
| 45 mph (72.42 km/h) | 45.65 mph (73.47 km/h) |
| 50 mph (80.47 km/h) | 50.73 mph (81.63 km/h) |
| 55 mph (88.51 km/h) | 55.8 mph (89.8 km/h) |
| 60 mph (96.56 km/h) | 60.87 mph (97.96 km/h) |
| 65 mph (104.61 km/h) | 65.94 mph (106.12 km/h) |
| 70 mph (112.65 km/h) | 71.02 mph (114.29 km/h) |
| 75 mph (120.7 km/h) | 76.09 mph (122.45 km/h) |
| 80 mph (128.75 km/h) | 81.16 mph (130.61 km/h) |
| 85 mph (136.79 km/h) | 86.23 mph (138.78 km/h) |
| 90 mph (144.84 km/h) | 91.31 mph (146.94 km/h) |
| 95 mph (152.89 km/h) | 96.38 mph (155.1 km/h) |
| 100 mph (160.93 km/h) | 101.45 mph (163.27 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1775 | 2062 | 2220 | 2318 | 2424 | 2500 | 2583 | 2681 | 2817 | 2953 | 3104 | 3225 | 3444 | 3685 | 3874 | 3995 | 4063 | 4312 | 4659 | 5414 |
Better Fuel Economy Factory Ratios Increased Power
