Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 195/50-13 | 385/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 20.68 (525.2) | 30.16 (766) | 9.48 (240.8) 45.8% |
| Width inches (mm) | 7.68 (195) | 15.16 (385) | 7.48 (190) 97.4% |
| Circum. inches (mm) | 64.96 (1649.96) | 94.74 (2406.46) | 29.78 (756.5) 45.8% |
| Sidewall Height inches (mm) | 3.84 (97.5) | 7.58 (192.5) | 3.74 (95) 97.4% |
| Revolutions per mile (km) | 975.38 (606.07) | 668.76 (415.55) | -306.62 (-190.53) -31.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 29.17 mph (46.94 km/h) |
| 25 mph (40.23 km/h) | 36.46 mph (58.68 km/h) |
| 30 mph (48.28 km/h) | 43.75 mph (70.42 km/h) |
| 35 mph (56.33 km/h) | 51.05 mph (82.15 km/h) |
| 40 mph (64.37 km/h) | 58.34 mph (93.89 km/h) |
| 45 mph (72.42 km/h) | 65.63 mph (105.62 km/h) |
| 50 mph (80.47 km/h) | 72.92 mph (117.36 km/h) |
| 55 mph (88.51 km/h) | 80.22 mph (129.1 km/h) |
| 60 mph (96.56 km/h) | 87.51 mph (140.83 km/h) |
| 65 mph (104.61 km/h) | 94.8 mph (152.57 km/h) |
| 70 mph (112.65 km/h) | 102.09 mph (164.31 km/h) |
| 75 mph (120.7 km/h) | 109.39 mph (176.04 km/h) |
| 80 mph (128.75 km/h) | 116.68 mph (187.78 km/h) |
| 85 mph (136.79 km/h) | 123.97 mph (199.51 km/h) |
| 90 mph (144.84 km/h) | 131.26 mph (211.25 km/h) |
| 95 mph (152.89 km/h) | 138.56 mph (222.99 km/h) |
| 100 mph (160.93 km/h) | 145.85 mph (234.72 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1702 | 1977 | 2129 | 2223 | 2325 | 2397 | 2477 | 2571 | 2701 | 2832 | 2976 | 3092 | 3302 | 3534 | 3715 | 3831 | 3896 | 4135 | 4468 | 5193 |
Better Fuel Economy Factory Ratios Increased Power
