RFX Race Series Kill Switch - OEM Replica (Manufacturer Part No: FXKB4020055ST). Designed to restore the stop function on your machine without compromise, this RFX kill switch is a compliant replica of the original part, intended for motocross riders and preparation workshops.

The housing and connectors replicate factory specifications: same connectors, same mounting points, and cable length identical to the original harness. Ideal for replacing a damaged kill switch after a fall or for quick replacement during competition.

Features:

• OEM replica: physical compatibility with original connectors
• Cable length conforms to original equipment for identical routing
• Designed for motocross use (resistance to mud and typical usage stresses according to original mounting)

Installation and Practical Tips:

• Replace the old kill switch while respecting the harness routing and connector polarity.
• Mount it on the handlebars at the desired position, checking the travel by fully turning the handlebars.
• Clean the contacts before connection and tighten the fasteners to avoid vibrations.

Top associated models: YAMAHA YZ 250 (2026), FANTIC XX 250 (2026), YAMAHA YZ 125 (2026). For demanding riders, this RFX kill switch restores safety and reliability of the stop system without any makeshift solutions.