I have two shocks I am looking to get rid of. Purchased them for some tinkering along with some other shocks and decided to go with one of the other shocks I had so I now have these to get rid of.
FZ8 shock is 2012, it is mint and can come with complete linkage if wanted. Dogbone + triangle linkage.
03 R1 shock, same dimensions as FZ8 shock except ~3/4" shorter with same size eyelets ect... I have seen people use some of the R1 shocks here as a swap mod.
I wish I had a FZ8 to see how it all fit into place, I noticed one person made some mounting bracket to make it work, I wonder if there is another more simple way?
Either way, shorter R1 shock if it bolts up will drop the rear of the bike, but you can generally pick it back up by using a shorter dogbone. stock fz8 dogbone is right around 216mm eye to eye. I would probably find or make a dogbone around 200mm eye to eye and see if that brought me back up to stock or better yet, buy used adjustable dogbone and take the guess work out of it. something like this. If you are crafty you can make one pretty cheap.
2004 2005 2006 Yamaha YZF R1 YZFR1 0 4 Adjustable Steel lowering Links Link Kit | eBay
The gas reservoir on the 03 is vertical up and down not horizontal (pics to come) not sure how this affects fitment vs horizontal 04-06 model
FZ8 shock with linkage $75 shipped CONUS
with out linkage $55 shipped CONUS
R1 shock $55 shipped CONUS (no linkage) but as mentioned stock FZ8 linkage all bolts on.
let me know if interested or have questions.