Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 135/70-15 | 185/55-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.44 (570) | 24.01 (609.9) | 1.57 (39.9) 7% |
| Width inches (mm) | 5.31 (135) | 7.28 (185) | 1.97 (50) 37% |
| Circum. inches (mm) | 70.5 (1790.71) | 75.44 (1916.06) | 4.94 (125.35) 7% |
| Sidewall Height inches (mm) | 3.72 (94.5) | 4.01 (101.75) | 0.29 (7.25) 7.7% |
| Revolutions per mile (km) | 898.72 (558.44) | 839.92 (521.9) | -58.79 (-36.53) -6.5% |
185/55-16 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.4 mph (34.44 km/h) |
| 25 mph (40.23 km/h) | 26.75 mph (43.05 km/h) |
| 30 mph (48.28 km/h) | 32.1 mph (51.66 km/h) |
| 35 mph (56.33 km/h) | 37.45 mph (60.27 km/h) |
| 40 mph (64.37 km/h) | 42.8 mph (68.88 km/h) |
| 45 mph (72.42 km/h) | 48.15 mph (77.49 km/h) |
| 50 mph (80.47 km/h) | 53.5 mph (86.1 km/h) |
| 55 mph (88.51 km/h) | 58.85 mph (94.71 km/h) |
| 60 mph (96.56 km/h) | 64.2 mph (103.32 km/h) |
| 65 mph (104.61 km/h) | 69.55 mph (111.93 km/h) |
| 70 mph (112.65 km/h) | 74.9 mph (120.54 km/h) |
| 75 mph (120.7 km/h) | 80.25 mph (129.15 km/h) |
| 80 mph (128.75 km/h) | 85.6 mph (137.76 km/h) |
| 85 mph (136.79 km/h) | 90.95 mph (146.37 km/h) |
| 90 mph (144.84 km/h) | 96.3 mph (154.98 km/h) |
| 95 mph (152.89 km/h) | 101.65 mph (163.59 km/h) |
| 100 mph (160.93 km/h) | 107 mph (172.2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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
