Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/65-16 | 185/55-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.47 (646.9) | 24.01 (609.9) | -1.46 (-37) -5.7% |
| Width inches (mm) | 7.28 (185) | 7.28 (185) | 0 (0) 0% |
| Circum. inches (mm) | 80.01 (2032.3) | 75.44 (1916.06) | -4.58 (-116.24) -5.7% |
| Sidewall Height inches (mm) | 4.73 (120.25) | 4.01 (101.75) | -0.73 (-18.5) -15.4% |
| Revolutions per mile (km) | 791.88 (492.05) | 839.92 (521.9) | 48.04 (29.85) 6.1% |
185/55-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.86 mph (30.35 km/h) |
| 25 mph (40.23 km/h) | 23.57 mph (37.93 km/h) |
| 30 mph (48.28 km/h) | 28.28 mph (45.52 km/h) |
| 35 mph (56.33 km/h) | 33 mph (53.11 km/h) |
| 40 mph (64.37 km/h) | 37.71 mph (60.69 km/h) |
| 45 mph (72.42 km/h) | 42.43 mph (68.28 km/h) |
| 50 mph (80.47 km/h) | 47.14 mph (75.86 km/h) |
| 55 mph (88.51 km/h) | 51.85 mph (83.45 km/h) |
| 60 mph (96.56 km/h) | 56.57 mph (91.04 km/h) |
| 65 mph (104.61 km/h) | 61.28 mph (98.62 km/h) |
| 70 mph (112.65 km/h) | 66 mph (106.21 km/h) |
| 75 mph (120.7 km/h) | 70.71 mph (113.8 km/h) |
| 80 mph (128.75 km/h) | 75.42 mph (121.38 km/h) |
| 85 mph (136.79 km/h) | 80.14 mph (128.97 km/h) |
| 90 mph (144.84 km/h) | 84.85 mph (136.56 km/h) |
| 95 mph (152.89 km/h) | 89.57 mph (144.14 km/h) |
| 100 mph (160.93 km/h) | 94.28 mph (151.73 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2137 | 2483 | 2674 | 2792 | 2920 | 3011 | 3111 | 3229 | 3393 | 3556 | 3738 | 3884 | 4148 | 4439 | 4666 | 4812 | 4893 | 5194 | 5612 | 6521 |
Better Fuel Economy Factory Ratios Increased Power
