Motorcycle clutches are generally oil-immersed multi-discs (with the exception of Ducati and Aprilia, which have dry clutches). We advise you to change the set of discs (lined and plain discs), as well as the springs and the clutch housing gasket for better efficiency. The complete "smooth" clutch disc kit is identical to your original discs. Replacing them is quick and easy. Note : for this part number, you have two mounting options: 7 discs (6+1) or 7 identical discs. That''s why we deliver 8 discs (7+1).