This is a set of EBC heavy dutyclutch friction plates and clutch springs, part number CK4434 and CSK023to fit the Kawasaki ZRX1100 (ZR1100) C1 / C2 / C3 / C4 models (1997-2000). EBC heavy duty clutch springs are stiffer than the standard OE springs, which may result in a slightly 'heavier' feel.
