I have an RD350 hybrid with NC30 rear end, I stupidly left it outside in the snow and now the rear caliper is stiff. I have had it off and worked the pistons in and out but still binding.

Just wondering what options are there for me ( Cheap ones that is )

How much is a rebuild kit?

What other caliper fits? If any?

If not anyone got a good one thats not binding?

Chears

No other calipers that I know of are straight bolt on swaps.

You could probably adapt nearly anything to go on there but it would take some machining skill.

A std replacement might be your best option, they can be had cheap.