Normally Closed (NC) Safety Kill Switch Designed for racing and high-performance ATV applications, this Normally Closed (NC) kill switch provides an added layer of safety by shutting the engine off when the circuit is interrupted. Commonly used with tether systems, this setup is popular among racers and aggressive off-road riders who want dependable emergency engine shutoff protection. In a normally closed configuration: Circuit connected = engine operates normally Circuit interrupted = engine shuts off If the tether is pulled or the rider becomes separated from the machine, the switch opens the circuit to quickly stop ignition operation. Ideal For Race quads Drag racing ATVs Ice racing Dune riding Performance and competition builds Features Common tether-style safety configuration Helps prevent runaway vehicles Durable design for harsh riding environments Simple wiring and installation Works with many ATV ignition systems