How to Identify Wheel Rim Models?

[Salvador]

The wheel rim model can be found on the inner side of the rim. The specifications of a car wheel rim mainly include: diameter, width, bolt hole size (PCD), center bore, and offset. Some of these parameters can be seen visually, some require simple measurements, and others need professional tools for accurate measurement. Detailed introduction to wheel specifications: Size: The wheel rim size essentially refers to its diameter. Generally, larger rim sizes and higher tire aspect ratios on sedans can enhance visual appeal and improve vehicle handling stability, but this also leads to increased fuel consumption. Width: The width of the rim, commonly known as the J value, directly affects tire selection. For the same tire size, different J values will require different tire aspect ratios and widths. PCD and Bolt Pattern: PCD, professionally known as Pitch Circle Diameter, refers to the diameter between the fixing bolts at the center of the rim. Most rims have either 5 or 4 bolt holes, with varying distances between them. For example, 5X114.3 indicates that the rim's PCD is 114.3mm with 5 bolt holes. When selecting a rim, PCD is one of the most critical parameters. For safety and stability, it's best to choose a rim with the same PCD as the original vehicle for upgrades. Offset: Offset (also known as ET) is the distance between the mounting surface and the centerline of the rim. This parameter is usually found on the back of the rim. In simpler terms, it determines whether the rim will sit more inward or outward after modification. For most sedans, the ET value is positive, while for some vehicles and jeeps, it can be negative. Center Bore: The center bore is the part used to connect and secure the rim to the vehicle, located at the concentric circle position of the rim's center. The diameter here affects whether the rim can be installed correctly, ensuring that the geometric center of the wheel aligns with that of the rim. Car Wheel Rim Maintenance: Use appropriate cleaning agents; Avoid cleaning when the wheel is too hot; Clean the rim correctly; Develop good driving habits. Drivers should be mindful of low obstacles on the road and avoid parking too close to curbs, which can easily scratch the rim. Minor scratches affect aesthetics, while severe ones can damage the anti-rust coating, compromising waterproofing and corrosion resistance, leading to rim deformation and affecting driving safety.