Flywheels
Flywheels (aka Skytread) tries to keep it together and stay upbeat, he really does, but it's hard when your mind (and often your body) is literally divided in two. A split personality would be trouble enough, but to add injury to illness, Flywheels' two halves are very jealous of each other and basically hate each other's guts. They spend more time fighting one another than the Autobots. It doesn't matter whether they're unified in robot form or not, Flywheels' two halves go right on arguing, which can be disconcerting to others around him, to say the least.
Team : Decepticons