Highsider

A highsider or high-side is a type of motorcycle accident characterized by sudden and violent rotation of the bike around its longitudinal axis.

Highsiders differ from lowsiders as follows: during a lowsider, the rear wheel slips laterally and continuously until the bike falls onto its inner, or "low", side, while during a highsider, the rear wheel slips laterally briefly before suddenly regaining traction and flipping the bike onto its outer, or "high" side.

There is a limited amount of force tangential to the road that the contact patch can transmit before the tire begins to lose traction, and therefore slide or skid.

If the angle is high enough, the bike is moving fast enough, and the rear tire slips and regains traction suddenly enough, the rider has no chance of preventing a highside.

If forcibly thrown over the bike, the rider is said to have dismounted[citation needed] on the high side.