Traitor's wheel
From MediaWiki
The Traitor's Wheel is a Decepticon instrument of execution. It's a very painful way to go.
Fiction
IDW comics continuity
Fulcrum was sentenced to death by Traitor's Wheel in Styx, but was given a brief reprieve of sorts when he and the rest of the prisoners were conscripted into the K-Class, to die as bombs on the battlefield. Who's Afraid of the DJD?

