As I'm getting to my limit on shed (and house!) bike capacity I'm starting to thin out my 'collection' of components, mainly the ones I can't see myself using, even in the long term. Most of this stuff I can hazard a reasonable guestimate of worth for forum and jumble selling but there are one or two more exotic items that I want to be a bit more certain about before I let them go.
From the MTB side I have one or two things, Firstly I have a pair (a bikesworth that is) of Marin Decelerators, boxed, and very little useage complete with cables etc. I also have a NOS Shimano Sharkfin still in package.
Legend has it that both of these have been sold for vast sums in the past - but what could I realistically expect to get for them currently? Any advice gratefully received.