Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 205/65-13 | 185/65-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.49 (596.7) | 23.47 (596.1) | -0.02 (-0.6) -0.1% |
| Width inches (mm) | 8.07 (205) | 7.28 (185) | -0.79 (-20) -9.8% |
| Circum. inches (mm) | 73.8 (1874.59) | 73.73 (1872.7) | -0.07 (-1.88) -0.1% |
| Sidewall Height inches (mm) | 5.25 (133.25) | 4.73 (120.25) | -0.51 (-13) -9.8% |
| Revolutions per mile (km) | 858.51 (533.45) | 859.37 (533.99) | 0.86 (0.54) 0.1% |
185/65-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.98 mph (32.15 km/h) |
| 25 mph (40.23 km/h) | 24.97 mph (40.19 km/h) |
| 30 mph (48.28 km/h) | 29.97 mph (48.23 km/h) |
| 35 mph (56.33 km/h) | 34.96 mph (56.27 km/h) |
| 40 mph (64.37 km/h) | 39.96 mph (64.31 km/h) |
| 45 mph (72.42 km/h) | 44.95 mph (72.35 km/h) |
| 50 mph (80.47 km/h) | 49.95 mph (80.39 km/h) |
| 55 mph (88.51 km/h) | 54.94 mph (88.43 km/h) |
| 60 mph (96.56 km/h) | 59.94 mph (96.46 km/h) |
| 65 mph (104.61 km/h) | 64.93 mph (104.5 km/h) |
| 70 mph (112.65 km/h) | 69.93 mph (112.54 km/h) |
| 75 mph (120.7 km/h) | 74.92 mph (120.58 km/h) |
| 80 mph (128.75 km/h) | 79.92 mph (128.62 km/h) |
| 85 mph (136.79 km/h) | 84.91 mph (136.66 km/h) |
| 90 mph (144.84 km/h) | 89.91 mph (144.7 km/h) |
| 95 mph (152.89 km/h) | 94.9 mph (152.73 km/h) |
| 100 mph (160.93 km/h) | 99.9 mph (160.77 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2187 | 2541 | 2736 | 2857 | 2987 | 3080 | 3183 | 3304 | 3471 | 3639 | 3825 | 3974 | 4244 | 4541 | 4774 | 4923 | 5007 | 5314 | 5742 | 6672 |
Better Fuel Economy Factory Ratios Increased Power
