Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/35-15 | 315/35-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.51 (622.5) | 23.68 (601.5) | -0.83 (-21) -3.4% |
| Width inches (mm) | 13.58 (345) | 12.4 (315) | -1.18 (-30) -8.7% |
| Circum. inches (mm) | 76.99 (1955.64) | 74.4 (1889.67) | -2.6 (-65.97) -3.4% |
| Sidewall Height inches (mm) | 4.75 (120.75) | 4.34 (110.25) | -0.41 (-10.5) -8.7% |
| Revolutions per mile (km) | 822.92 (511.34) | 851.65 (529.19) | 28.73 (17.85) 3.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.33 mph (31.1 km/h) |
| 25 mph (40.23 km/h) | 24.16 mph (38.88 km/h) |
| 30 mph (48.28 km/h) | 28.99 mph (46.65 km/h) |
| 35 mph (56.33 km/h) | 33.82 mph (54.43 km/h) |
| 40 mph (64.37 km/h) | 38.65 mph (62.2 km/h) |
| 45 mph (72.42 km/h) | 43.48 mph (69.98 km/h) |
| 50 mph (80.47 km/h) | 48.31 mph (77.75 km/h) |
| 55 mph (88.51 km/h) | 53.14 mph (85.53 km/h) |
| 60 mph (96.56 km/h) | 57.98 mph (93.3 km/h) |
| 65 mph (104.61 km/h) | 62.81 mph (101.08 km/h) |
| 70 mph (112.65 km/h) | 67.64 mph (108.85 km/h) |
| 75 mph (120.7 km/h) | 72.47 mph (116.63 km/h) |
| 80 mph (128.75 km/h) | 77.3 mph (124.4 km/h) |
| 85 mph (136.79 km/h) | 82.13 mph (132.18 km/h) |
| 90 mph (144.84 km/h) | 86.96 mph (139.96 km/h) |
| 95 mph (152.89 km/h) | 91.8 mph (147.73 km/h) |
| 100 mph (160.93 km/h) | 96.63 mph (155.51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2167 | 2518 | 2711 | 2831 | 2960 | 3053 | 3154 | 3274 | 3440 | 3606 | 3790 | 3938 | 4205 | 4501 | 4731 | 4879 | 4962 | 5266 | 5690 | 6613 |
Better Fuel Economy Factory Ratios Increased Power
