Rims: The Outer Edge of a Wheel
Rims are the outer edges of a wheel that hold the tire in place. They make up the circular design of the wheel and are essential for supporting and sealing the tire to the wheel). The rim is typically U-shaped, with the center being deeper than the edges, and it supports the bead of the tire). It is an integral part of the wheel, but it is not the entire wheel itself. 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. It plays a crucial role in maintaining the air inside tubeless tires by ensuring an appropriate fit.
In summary, rims are a vital component of a wheel, providing the outer edge that holds the tire in place and supports the bead of the tire. They are not the entire wheel, but rather a specific part of it, and are made of the same metal or alloy as the rest of the wheel, with additional protective coverings in some cases.