I had this on my S2R. I think it fits 2001-2008 Monsters but correct me if I'm wrong. I bought it used and it looks like it was on a bike that sat outside a lot as the seat area is a little faded and some of the hardware on the bottom is rusty. OEM tool kit included. It's still comfortable, I just prefer my OEM seat better as it was re-done by Spencer. Asking $220 shipped.