Shift Dead Heat

Based on a motorcycle with sidecar, Shift Dead Heat (シフトデッドヒート) is a sentient Signal Bike/Shift Car hybrid that allows Kamen Riders Drive and Mach to respectively transform into Type Dead Heat and Deadheat Mach, enabling them to access the Dead Zone state.

Shift Dead Heat first appeared only as a sidecar part since Rinna still tried to complete it, but got sidetracked by personal problems. Later, it was completed by Harley Hendrickson. Usage of Shift Dead Heat carries the risk of turning the Mach System into an out of control rampant and attack anyone around him. The only way to stop this is to strike Mach with either a finishing move or an attack strong enough to deactivate Shift Dead Heat's influence on him so that he can cancel the transformation. Usage of Shift Dead Heat can also enable its user to resist the effects of a Super Heavy Acceleration field, but with the drawback of its user's enhanced capabilities being restricted as well as taking a much heavier toll on their body. However, it still allows a normal human to escape. Unlike Shinnosuke, even though there are no special emotions required, Go must believe in himself and have confidence in his own powers in order to use Shift Dead Heat properly.