See: REDS Racing
REDS Racing has updated its off road hybrid 4 shoe system called Quattro. The new Quattro clutch shoe system comes with a thicker flywheel (is available both with 32mm and 34mm diameter to make it suitable for any type of car) to increase inertia of rotation and the durability of the flywheel.
The Quattro clutch system is made up of a hybrid 4 shoe system: Two aluminium shoes and two carbon shoes which is suitable for all kinds of offroad track. The new Quattro clutch assemble is completely adjustable and thanks to a rotating front plate there is no need to disassemble it or to change the springs. REDS Clutch system is 100% made in Italy.