FAST's Crank Triggers are magnet free devices with durable wheels constructed from high strength steel. With a .125" wheel, it requires less space than competitors’ aluminum versions. The inductive sensor is also much smaller than others on the market and is hermetically sealed with the connector molded into the body. This long lasting sensor is used by OEMs both on and inside the motor and provides accurate timing. Compatible with XFI 2.0, XFI Sportsman, EZ-EFI 2.0 Fuel Ignition or for use with other aftermarket EFI/ignitions.