he 2012-UP Air Ride Sender is designed to automatically regulate air suspension pressure on trikes, suitable for models from mid-2012 onward. Operating between 90-120 psi, it ensures optimal suspension performance. For installation on pre-2012.5 trikes, additional components such as mounts, wiring (5160006), and valves (6770171 & 6770172) are required to complete the system upgrade. This sender is essential for maintaining smooth, stable rides with precise air suspension control.   Viair 90100 Pressure Switch