Also, from my last trip over to miller, their rulebook requires sharkfins as well as frame sliders and ours does not! There are exceptions for those of us that ride cool bikes like the 999 which has it integrated into the swingarm but would be good to check on your application before getting over there and not passing tech for a $20 part! If you don't have one I know Kory carries a few with him to the track so you could check with him! Just a heads up!