According to the installation position, it is divided into the front fender and the rear fender. The front fender is installed at the front wheel, which must ensure the maximum limit space when the front wheel rotates and beats.
Therefore, the designer will use the "wheel beat diagram" to verify whether the design size of the fender is appropriate according to the selected tire size.
The rear fender is not subject to wheel scraping, but is slightly arched and bulges out for aerodynamic reasons. Now some car wing panels and body body has become a whole, production at one go.
But there are also car fender is independent, especially the front fender, because the front fender collision opportunities are more, independent assembly is easy to replace the whole piece.