system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are the wheels of athlete's wheelchairs tilted, and how does that affect its motion?
gpt
This is called cambering.  Wheels with a negative camber (that is, wheels that angle inwards at the top) provide more stability, and better control for cornering/turning at high rates.  In addition, the camber allows for forward momentum with downward force, in addition to forward force.  It allows the athlete more control over their speed, and direction.  It also protects the athletes hands from colliding/scraping against other players/equipment during close quarters play.