Replacing the rear cassette on the Cannondale -- part 6 -- Cleaning the old cassette

This is "junk" since it's worn.

But, I'm going to keep it to remind me of what can happen.

Don't want to keep it dirty, so will clean.

'

I found a used plastic container that's just the right size.

Submerged the parts in Simple Green cleaner.

Will leave it in the cleaner for several days, before doing some scrubbing with a brush...