Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 175/50-16 | 385/50-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.89 (581.4) | 31.16 (791.4) | 8.27 (210) 36.1% |
| Width inches (mm) | 6.89 (175) | 15.16 (385) | 8.27 (210) 120% |
| Circum. inches (mm) | 71.91 (1826.52) | 97.88 (2486.26) | 25.97 (659.73) 36.1% |
| Sidewall Height inches (mm) | 3.44 (87.5) | 7.58 (192.5) | 4.13 (105) 120% |
| Revolutions per mile (km) | 881.1 (547.49) | 647.3 (402.21) | -233.8 (-145.28) -26.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 27.22 mph (43.81 km/h) |
| 25 mph (40.23 km/h) | 34.03 mph (54.77 km/h) |
| 30 mph (48.28 km/h) | 40.84 mph (65.72 km/h) |
| 35 mph (56.33 km/h) | 47.64 mph (76.67 km/h) |
| 40 mph (64.37 km/h) | 54.45 mph (87.63 km/h) |
| 45 mph (72.42 km/h) | 61.25 mph (98.58 km/h) |
| 50 mph (80.47 km/h) | 68.06 mph (109.53 km/h) |
| 55 mph (88.51 km/h) | 74.87 mph (120.49 km/h) |
| 60 mph (96.56 km/h) | 81.67 mph (131.44 km/h) |
| 65 mph (104.61 km/h) | 88.48 mph (142.39 km/h) |
| 70 mph (112.65 km/h) | 95.28 mph (153.34 km/h) |
| 75 mph (120.7 km/h) | 102.09 mph (164.3 km/h) |
| 80 mph (128.75 km/h) | 108.9 mph (175.25 km/h) |
| 85 mph (136.79 km/h) | 115.7 mph (186.2 km/h) |
| 90 mph (144.84 km/h) | 122.51 mph (197.16 km/h) |
| 95 mph (152.89 km/h) | 129.31 mph (208.11 km/h) |
| 100 mph (160.93 km/h) | 136.12 mph (219.06 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1647 | 1914 | 2061 | 2152 | 2250 | 2320 | 2397 | 2488 | 2615 | 2741 | 2881 | 2993 | 3196 | 3421 | 3596 | 3708 | 3771 | 4002 | 4325 | 5026 |
Better Fuel Economy Factory Ratios Increased Power
