Lowside

A lowside is a type of motorcycle crash where the bike loses traction and slides out from underneath the rider, causing both the motorcycle and rider to fall and slide along the track surface together.

This crash happens when either the front or rear wheel loses grip with the road, usually during cornering. When a motorcycle leans into a turn, the tires create forces that keep the bike upright and moving in the desired direction. If these tires lose their grip on the surface, the bike can no longer maintain its balance and will slide out to one side.

Several common factors can cause a lowside crash. Riders might brake too hard while leaning into a turn, apply too much throttle when accelerating out of a corner, or simply enter a turn with too much speed for the available grip. Environmental conditions also play a major role - wet roads, oil spills, gravel, or even cold tires that haven't warmed up properly can all reduce the available traction.

During a lowside, the rider typically falls at ground level and slides along with their motorcycle. This sliding motion is what gives the crash its name - both bike and rider stay "low" to the ground rather than being thrown into the air. The sliding often results in what racers call "road rash" - scrapes and abrasions from contact with the asphalt.

While any motorcycle crash is serious, lowsides are generally considered less dangerous than their opposite, called "highsides." In a highside crash, the rear wheel suddenly regains traction after sliding, causing the bike to violently flip and often throwing the rider high into the air.

Motorcycle racers and street riders can reduce their risk of lowside crashes by using smooth, controlled inputs on the brakes and throttle, being aware of road conditions, and riding within their skill limits. Proper protective gear remains essential since even a relatively minor lowside can cause significant injuries.