I have both a gsxr1100w shock,resivour mounts in the tool kit area. And a Works Performance shock,resivour munts behind the right side. Both are a great improvment over the cheap stock shock. The WP keeps the stock ride higth,the GSXR adds 1 1/2" to the rear. The GSXR is fully adjustable,the WP has thread type adjustment for preload,and adjustment for rebound,it was set up for my weight and riding,and has 2 diferent springs. The GSXR cost me $150 plus shipping. the WP was just under $500,(could have gotten the fully adjustable for $600.
. I have the WP on now, I like to think its a bit smoother(maybe just beause I spent the $. But I might put the GSXR back on when I go to the track.If I do, I'll have a better evaluation between the 2. Penske is a top shelf shock,anthe Fox twin clicker is suposed to be a good shock too.
Dan ( gen.1)