Speedometer Head
Speedometer Accuracy| Standard Inclination | Allowable Range |
| 20 Mile Per Hour (mph) | 18 to 24 Mile Per Hour (mph) |
| 40 Mile Per Hour (mph) | 38 to 44 Mile Per Hour (mph) |
| 60 Mile Per Hour (mph) | 56 to 66 Mile Per Hour (mph) |
| 80 Mile Per Hour (mph) | 78 to 88 Mile Per Hour (mph) |
| 100 Mile Per Hour (mph) | 98 to 110 Mile Per Hour (mph) |
| 120 Mile Per Hour (mph) | 118 to 132 Mile Per Hour (mph) |