Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/65-15 | 165/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.47 (621.5) | 23.44 (595.5) | -1.02 (-26) -4.2% |
| Width inches (mm) | 7.28 (185) | 6.5 (165) | -0.79 (-20) -10.8% |
| Circum. inches (mm) | 76.87 (1952.5) | 73.65 (1870.82) | -3.22 (-81.68) -4.2% |
| Sidewall Height inches (mm) | 4.73 (120.25) | 4.22 (107.25) | -0.51 (-13) -10.8% |
| Revolutions per mile (km) | 824.25 (512.16) | 860.24 (534.52) | 35.99 (22.36) 4.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.16 mph (30.84 km/h) |
| 25 mph (40.23 km/h) | 23.95 mph (38.55 km/h) |
| 30 mph (48.28 km/h) | 28.74 mph (46.26 km/h) |
| 35 mph (56.33 km/h) | 33.54 mph (53.97 km/h) |
| 40 mph (64.37 km/h) | 38.33 mph (61.68 km/h) |
| 45 mph (72.42 km/h) | 43.12 mph (69.39 km/h) |
| 50 mph (80.47 km/h) | 47.91 mph (77.1 km/h) |
| 55 mph (88.51 km/h) | 52.7 mph (84.81 km/h) |
| 60 mph (96.56 km/h) | 57.49 mph (92.52 km/h) |
| 65 mph (104.61 km/h) | 62.28 mph (100.23 km/h) |
| 70 mph (112.65 km/h) | 67.07 mph (107.94 km/h) |
| 75 mph (120.7 km/h) | 71.86 mph (115.65 km/h) |
| 80 mph (128.75 km/h) | 76.65 mph (123.36 km/h) |
| 85 mph (136.79 km/h) | 81.44 mph (131.07 km/h) |
| 90 mph (144.84 km/h) | 86.23 mph (138.78 km/h) |
| 95 mph (152.89 km/h) | 91.03 mph (146.49 km/h) |
| 100 mph (160.93 km/h) | 95.82 mph (154.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2189 | 2543 | 2739 | 2860 | 2990 | 3083 | 3186 | 3307 | 3475 | 3642 | 3829 | 3978 | 4248 | 4546 | 4779 | 4928 | 5012 | 5319 | 5748 | 6679 |
Better Fuel Economy Factory Ratios Increased Power
