The Malossi fly clutch is a very robust high quality clutch. An ideal replacement for the original item. Clutch comes with a set of springs which are slightly stronger than the original ones, i.e. it engages at higher revs.
ATTENTION! Since 98, Minarelli engines (Aprilia, Yamaha) come with new clutches. Please check whether your clutch has two or three shoes. As an alternative, you can measure the inner diameter of the clutch bell, which should be 105mm (2-shoe-clutch) or 107mm (3-shoe-clutch).