the guy selling those shocks says he selling them because he needs standard travel for his bike and bought them by mistake, i looked around at some alba thread and 17" seems to be the length needed for long travel arms..soooo
those MIGHT be standard length shock for a bike that isnt a banshee at 16.5
just throwing it out there...but at $85 id prolly still get them and see how it pans out, youd could prolly resell for double no matter what they are for