Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/55-15 | 165/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.15 (562.5) | 23.44 (595.5) | 1.3 (33) 5.9% |
| Width inches (mm) | 6.5 (165) | 6.5 (165) | 0 (0) 0% |
| Circum. inches (mm) | 69.57 (1767.15) | 73.65 (1870.82) | 4.08 (103.67) 5.9% |
| Sidewall Height inches (mm) | 3.57 (90.75) | 4.22 (107.25) | 0.65 (16.5) 18.2% |
| Revolutions per mile (km) | 910.7 (565.88) | 860.24 (534.52) | -50.47 (-31.36) -5.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.17 mph (34.08 km/h) |
| 25 mph (40.23 km/h) | 26.47 mph (42.59 km/h) |
| 30 mph (48.28 km/h) | 31.76 mph (51.11 km/h) |
| 35 mph (56.33 km/h) | 37.05 mph (59.63 km/h) |
| 40 mph (64.37 km/h) | 42.35 mph (68.15 km/h) |
| 45 mph (72.42 km/h) | 47.64 mph (76.67 km/h) |
| 50 mph (80.47 km/h) | 52.93 mph (85.19 km/h) |
| 55 mph (88.51 km/h) | 58.23 mph (93.71 km/h) |
| 60 mph (96.56 km/h) | 63.52 mph (102.23 km/h) |
| 65 mph (104.61 km/h) | 68.81 mph (110.74 km/h) |
| 70 mph (112.65 km/h) | 74.11 mph (119.26 km/h) |
| 75 mph (120.7 km/h) | 79.4 mph (127.78 km/h) |
| 80 mph (128.75 km/h) | 84.69 mph (136.3 km/h) |
| 85 mph (136.79 km/h) | 89.99 mph (144.82 km/h) |
| 90 mph (144.84 km/h) | 95.28 mph (153.34 km/h) |
| 95 mph (152.89 km/h) | 100.57 mph (161.86 km/h) |
| 100 mph (160.93 km/h) | 105.87 mph (170.38 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
