Have you ever popped a wheelie on your bike and thought, “Man this bike can hold its own!” But what actually was holding your bike was the swingarm at the rear along with the suspension on the back taking that entire load. If you don’t really know what a swingarm is or how it looks, just check out your bike and you will find a long thick rectangular piece of metal or a rod connected to your real wheel from the chassis and has your bike’s rear suspension supported on it.