Elles ne sont polies, elles sont chromées.
En revanche pourquoi cela n'est pas trop conseillé qu'elles le soient !?
J'ai eu plusieurs fois des jantes polies, c'est autre chose mais question entretien, c'est du boulot.
Là un peu de Belgom chrome ou un autre produit, un coup de chiffon et c'est fini.
voila pourquoi!!!(desolé c'est en anglais)
*** Important info to know ***
Chroming weakens aluminum Fuchs because the temperatures reached during the chroming process exceed that which the aluminum can tolerate. It comprises the wheel's integrity, thus making them brittle, thus prone to failure (cracking & collapsing). Can chromed Fuchs be dechromed? Technically, yes. Maybe 2 wheel places in the USA can do it right, but it is extremely expensive, thus not cost effective. However, the acids from the liquid chrome are absorbed into the aluminum. Even after "proper" stripping, the insidious acids will remain. Most of us know that Fuchs pit from the inside out. So, previously chromed Fuchs will end up pitting much faster than normal. Chroming is like a death sentence for Fuchs. It certainly cuts their shelf-life or half-life or whatever you'd like to call it... and chromed Fuchs are a safety hazard. They will crack/collapse. It is just a matter of time. It's scary to think of a rim failure under hard cornering or even cruising on the highway. Rim failure scenario is nothing like a flat tire - it is immeasurably worse, it can be catastrophic.
Chromed Fuchs are junk!!! Period.
I've heard of people chroming heavily pitted Fuchs just in order to sell them and make a quick buck. Chroming can be done very inexpensively (cheaper than $50/wheel). Copper is applied first to smoothen the surface before the chroming takes place. Thus, you won't see the pits on a freshly chromed Fuch. The wheels will look good initially, but their "beauty" is only skin deep. Buyers beware!!!