Lowsides

Lowsides are a category of motorcycle crash in which the rider and the motorcycle slide along the ground on the bike’s lower side after traction is lost. They are distinct from high-sides, where a front-wheel grip is suddenly regained and the rider is propelled across the bike. In a typical low-side, the front or rear tire loses grip, the bike begins to slide, and the rider washes out to the lower side, often with the body and bike coming to rest on or near the sliding surface.

Causes and contributing factors include reduced tire grip from wet, oily, dusty, or uneven pavement; excessive speed for a given corner; abrupt braking or acceleration; improper line or late apex in a turn; and mechanical issues such as worn tires, misadjusted suspension, or braking system problems. Road conditions, including gravel, painted markings, and debris, also raise the risk. Protective riding techniques and rider behavior influence the likelihood and severity of a lowside.

Injuries from lowsides can range from road rash and contusions to fractures or head injuries, with outcomes heavily influenced by helmet use and protective gear. Bike damage varies but can include scraped components, bent rims, or damaged forks and swingarms.

Prevention focuses on maintaining tires and suspension, riding within grip limits, and using smooth inputs for throttle, braking, and steering. Training in cornering, situational awareness, and the use of protective equipment—such as a quality helmet, armored jacket, gloves, pants, and boots—also reduces risk. Lowsides are a common topic in rider education and safety discussions, where analysis aims to improve technique and rider survivability.