Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 196/65-15 | 185/65-14 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.03 (635.8) | 23.47 (596.1) | -1.56 (-39.7) -6.2% |
| Width inches (mm) | 7.72 (196) | 7.28 (185) | -0.43 (-11) -5.6% |
| Circum. inches (mm) | 78.64 (1997.42) | 73.73 (1872.7) | -4.91 (-124.72) -6.2% |
| Sidewall Height inches (mm) | 5.02 (127.4) | 4.73 (120.25) | -0.28 (-7.15) -5.6% |
| Revolutions per mile (km) | 805.71 (500.64) | 859.37 (533.99) | 53.66 (33.34) 6.7% |
185/65-14 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.75 mph (30.18 km/h) |
| 25 mph (40.23 km/h) | 23.44 mph (37.72 km/h) |
| 30 mph (48.28 km/h) | 28.13 mph (45.27 km/h) |
| 35 mph (56.33 km/h) | 32.81 mph (52.81 km/h) |
| 40 mph (64.37 km/h) | 37.5 mph (60.35 km/h) |
| 45 mph (72.42 km/h) | 42.19 mph (67.9 km/h) |
| 50 mph (80.47 km/h) | 46.88 mph (75.44 km/h) |
| 55 mph (88.51 km/h) | 51.57 mph (82.99 km/h) |
| 60 mph (96.56 km/h) | 56.25 mph (90.53 km/h) |
| 65 mph (104.61 km/h) | 60.94 mph (98.08 km/h) |
| 70 mph (112.65 km/h) | 65.63 mph (105.62 km/h) |
| 75 mph (120.7 km/h) | 70.32 mph (113.16 km/h) |
| 80 mph (128.75 km/h) | 75 mph (120.71 km/h) |
| 85 mph (136.79 km/h) | 79.69 mph (128.25 km/h) |
| 90 mph (144.84 km/h) | 84.38 mph (135.8 km/h) |
| 95 mph (152.89 km/h) | 89.07 mph (143.34 km/h) |
| 100 mph (160.93 km/h) | 93.76 mph (150.89 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
