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Disc material



Stepdaughter has left her cage on our drive while she goes on holiday.
Today I noticed that the brake discs had got very rusty, in about a week of
Yeah, my newer RX-7 also does that when the disks get wet...

no driving. Now car brake discs (like those on my old Guzzi, which also
rusted them) are cast iron. Early Jap bikes got around the rust thing by
using stainless steel, but the penalty was no brakes in the wet. So how
come the Bandit brakes perfectly well [1], wet or dry, and yet doesn't rust
the discs when left outside in the rain? What are they making brake discs
Probably another stainless steel alloy. They come in soft, hard, strong,
easy to machine, polishable, flame resistant, tailored for different
forms of corrosion and and and ....................
That plus, as someone else said, suitable pads.

out of these days?
Right, thanks. I gave the B12 a wash down yesterday, and put it away
overnight. Today, the rear disc is showing slight signs of rust, but the
front pair are pristine. Surely Suzuki aren't using different alloys front
and rear? Don't answer that, I know they aren't, it's just one of those
things, innit.
I think it's some sort of stainless steel still, but the friction
materials have improved a lot so they even work in the rain these days.
Aha. Same discs, better pads. Makes sense. Ta..


[1] for budget values of "well", i.e. adequately.