This is the Fioroni "Quattro" Lightweight Air Flow 4 Shoe Adjustable Clutch System. The famous "Quattro" clutch system has been re-designed, in a lightweight, self ventilating flywheel configuration. Made from Ergal 7075 aluminum, and hard anodized to distinguish it from the other Quattro models. The 35mm flywheel on this clutch has been milled to reduce weight, for increased acceleration. Additionally, the design allows a propeller action to be created, which will help to keep the clutch components cool and help to cycle air throughout the chassis providing the engine with fresh air.
Guaranteed to satisfy the arising demand of a four shoe clutch, the "Vario" Clutch System is reliable, durable and moreover adjustable. This clutch system includes two 'ergal' aluminum shoes, and two carbon composite shoes.
The principal characteristic of the Quattro four shoe clutch system, more than its standard quality, is related to the ability to adjust its working characteristics without changing springs like on standard clutches. Rotate the tightening cap that closes the clutch to one of two positions in order to increase or decrease the spring pre-load and, consequently, the engagement point of the clutch.