Are the disks on the XJs cast iron or stainess steel?

Cleaning up the crud on Abeja's 82 650 Maxim.

After removing it first, she sanded the ~spokes~ on the front disk to get the shmutsengoo off of the thing. Cleaned up really nicely, so much so that I was wondering if it could be left unpainted (the center spoked part I mean ..obviously not the braking/friction surface .. we are aware that you can't paint that part). She wants to leave the whole disk bare. It do look koo!

However we don't want to be taking care of that area if it is going to rust constantly. So if it's cast iron we'l get sme good Duplicolor (er VHT er ...????) to paint the spokes of the font disk.

Thanks!

 

It's an alloy of some sort, high stainless content; but it will get "funky" after a while, not so much rusty.

I recommend Duplicolor Caliper paint; it's what I use.

 

wouldnt it take like 1000 years for something to rust in arizona?

 

My Seca 750 was treated to a full-on chroming years ago, and the discs were POLISHED and cleared, and this held up pretty good.

They even bought the chrome buttons that go in the allen heads.
Chrome valve cover, alternator cover, crank end covers chrome, not polished. Somebody spent some money.

 

I used AIRPLANE Paint Remover.

My Calipers are Bright Alloy.
I cleaned and polished them.
Painted the Mount for a Euro-Look.

 

I am confused. Didn't he ask about the disc material? Not the caliper?

 

Good point.

 

Well and good. Nice job, looks great ....

But what about THE DISK?



And no it doesn't rain much here ... about an inch per year. Thaat's a huge part about what I love about where we live .. we have over 350 Sunny days per year here.

Weather aside, the bikes are still subject to water from time to time (washing them, the occassional puddle, etc ..).

Thanks for the answers. I wonder how much the *clear* that was applied to the disk spokes (poster with the chromed out Seca) was responsible for the disks looking so good over time?

Thanks folks.