I had a few chats with these guys when I was looking... the big attraction for me was that they will also sell you a quick bolt on kit for those euro trips which give you an additional 15mm down on top of the 10mm the rearset provides. You fit it, do your run down France or eurotrip or wherever and then take it off at the other end for the track. I?m still tempted actually.... if I ever get my bike back.