Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/70-14 | 205/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.2 (614.6) | 23.07 (586) | -1.13 (-28.6) -4.7% |
| Width inches (mm) | 7.28 (185) | 8.07 (205) | 0.79 (20) 10.8% |
| Circum. inches (mm) | 76.02 (1930.82) | 72.48 (1840.97) | -3.54 (-89.85) -4.7% |
| Sidewall Height inches (mm) | 5.1 (129.5) | 4.04 (102.5) | -1.06 (-27) -20.8% |
| Revolutions per mile (km) | 833.5 (517.91) | 874.18 (543.19) | 40.68 (25.28) 4.9% |
205/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.07 mph (30.69 km/h) |
| 25 mph (40.23 km/h) | 23.84 mph (38.36 km/h) |
| 30 mph (48.28 km/h) | 28.6 mph (46.03 km/h) |
| 35 mph (56.33 km/h) | 33.37 mph (53.71 km/h) |
| 40 mph (64.37 km/h) | 38.14 mph (61.38 km/h) |
| 45 mph (72.42 km/h) | 42.91 mph (69.05 km/h) |
| 50 mph (80.47 km/h) | 47.67 mph (76.72 km/h) |
| 55 mph (88.51 km/h) | 52.44 mph (84.4 km/h) |
| 60 mph (96.56 km/h) | 57.21 mph (92.07 km/h) |
| 65 mph (104.61 km/h) | 61.98 mph (99.74 km/h) |
| 70 mph (112.65 km/h) | 66.74 mph (107.41 km/h) |
| 75 mph (120.7 km/h) | 71.51 mph (115.08 km/h) |
| 80 mph (128.75 km/h) | 76.28 mph (122.76 km/h) |
| 85 mph (136.79 km/h) | 81.04 mph (130.43 km/h) |
| 90 mph (144.84 km/h) | 85.81 mph (138.1 km/h) |
| 95 mph (152.89 km/h) | 90.58 mph (145.77 km/h) |
| 100 mph (160.93 km/h) | 95.35 mph (153.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2225 | 2584 | 2783 | 2906 | 3039 | 3133 | 3238 | 3361 | 3531 | 3701 | 3891 | 4042 | 4317 | 4620 | 4856 | 5008 | 5093 | 5405 | 5841 | 6787 |
Better Fuel Economy Factory Ratios Increased Power
