Question: How to clean new R rotor before installation.

[haoz129]

Now you know why that shim was part of the package...those are still great brakes! Nice...

Thanks Astro.

Hi Haoz129 nice looking rims and brake rotors you got there, any way by trade I'm an Electroplater done it and still doing it.

Regarding that silver coating you mentioned I'm pretty sure that is zinc coating on the rotors to stop rusting especially around the hub area, manufactures would normally put some type of coating to protect the zinc coating from any moisture corrosion during transit and shelf life-appearance of the product.

And were the brake pads are in contact with the rotor that silver/ zinc coating will get stripped off, where as the rest of the coating will be intact you may find that it will be discoloured that's only due to the heat generated by the braking action.(show us some pictures of the rotors with out the rims)

Cheers

Yes, Franxc06, the silver coating is for anti rust. I have other rotors rust all over. But these R rotors do not rust due to the silver coating.

Here are some pictures after one year use.

Thanks.

Howard