What does car rim mean?

[LaZoe]

Rim (Car Rim) is the central part of the wheel where the axle is mounted, commonly referred to as the "wheel rim" or "steel rim". In the market, rims can be categorized into steel rims and alloy rims based on material: 1. Steel rims: The main advantages of steel rims are their simple manufacturing process (usually produced through casting, whereas aluminum alloy rims are typically made using low-pressure casting) and relatively low cost, along with strong resistance to metal fatigue. 2. Alloy rims: Alloy rims are lighter in weight, have lower inertial resistance, and are manufactured with high precision. They exhibit minimal deformation during high-speed rotation and reduced inertial resistance, which helps improve the car's straight-line driving performance, decreases tire rolling resistance, and consequently reduces fuel consumption.