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silver disk behind the rims - rust ring?

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Old Mar 8, 2003 | 10:20 AM
  #1  
MAXIMARK's Avatar
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silver disk behind the rims - rust ring?

... now that I have the '02SE rims the calipers and rotors (silver disks behind rims) are more visible. For the calipers I searched and found the folitec brush on paint and VHT spray caliper coating. My biggest concern is the rust on the outer edge and around the bolt flange of the rotor face. How have other org members dealt with the rust? Wire wheel it off - once the rotor gets wet it would return. Use a product like Ospho turning the rust ring into a black ring. Lastly, wire wheel and paint the rusting areas while avoiding the brake pad contact surface. Power$lot rotors come with a cadmium plating that reportedly eliminates rusting. There an Ebay auction selling crossdrileed/slotted rotors, ~$200 for a complete set of four. I've read that crossdrilled rotors aren't the best way to go due to possible cracking. Another Ebay auction is for Power slots. Power$lots are a bit pricey at around $165 for fronts and $193 for rears. Does anyone make the regular blank rotors that are cadmium plated to prevent the rust rings? What say the mighty org members? Be Safe, Mark V.
Old Mar 8, 2003 | 10:51 AM
  #2  
95emeraldgxe's Avatar
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the best way to go would be by getting dimpled rotors. Cross drilled rotors eat up your brake pads like no tomorrow. About the rust on the rotors - try a little bit of WD-40?
Old Mar 8, 2003 | 11:54 AM
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WD-40 is a petroleum based lubricant and not something you want to use on brakes

Do not use spray lubricants near brake components. If you contaminate the brake-pad material with petroleum lubricants, you might as well throw them onto the trash heap. You won't be stopping all that well, either.

The rust-oxidizing products like you mentioned (turns rust black) are not temperature-rated for brake disks and if you treat the rotor hat area or the outer edge of the rotors, the finish will bubble and deteriorate very soon.

(How do I know this? I tried it myself, so I know it's true).

Your best bet is to remove the rotors, use either a Dremel wire-brush or drill-wire brush rotary tool, or some fine sandpaper to remove most of the loose stuff & rust particles (it doesn't have to be bare), then spray the whole rotor thoroughly with brake-parts cleaner & then shoot the rotor hat with high-temperature motorcycle header/exhaust paint (avail. in black, silver etc.) -2 or 3 light coats, then maybe a coat of high-temp clearcoat if you really want to dress it up (optional).

You can either mask off the friction surface of the rotor, or not - the brake pads will sweep off any paint on this area in a couple revolutions and your pads/rotors won't suffer any ill effects.

I did this to my rear rotors and the finish has held up great for well over a year. Good luck!
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