I have a Penske double clicker shock for a 2007-2008 ZX6R. Has 500lb spring installed. Typically Penske can change the bottom clevis to fit a wide range of bikes, but please do your own research. Asking $575.00 plus shipping
The 8987 is the triple adjustable model. The shock is from a 2007. however has been sitting since the bike was parted at the end of 2016. From memory it was last refreshed in 2015.