A rim is the outer edge of a wheel that holds the tire in place
. It is typically U-shaped when viewed head-on, with the center being deeper than around the edges to support the bead of the tire. The rim is generally made of the same metal or alloy as the rest of the wheel, with the addition of a Teflon covering for increased protection
. The terms "rim" and "wheel" are often used interchangeably, but technically, the rim is just one component of the wheel
