Know your Transformers: Sideways.

Sideways in "bike mode" Art (above and below) by Matt Kuphaldt

Wiki:

"Sideways is a gleeful troublemaker, for whom chaos is its own reward. His every action misleads and deceives, be it for his own twisted amusement, or for whatever deeper agenda he may be working towards. In truth, this cunning and deadly warrior is an agent of the chaos-bringer, Unicron, and is charged with the task of appearing as both Autobot and Decepticon in order to cause confusion amongst both factions and prevent them from allying together against his planet-eating master"

Vicious Cycles. Everybody loves a good motorcycle robot rumble.