[Darren69]

I've not investigated fully but from what I can see they bolt to the engine lower crankcase and swingarm axle on the S4R/S2R style bikes instead of the frame like on the S4 and earlier Monsters, so you would probably need to buy some extra Ducati S4R/S2R parts of fab your own. I didn't check out the details beforehand so I don't know how much exactly that would cost, but even so they are really nice and could be worth the effort.