From Stein Dinse website
62640151A -Ducati Clamp clutch master cylinder - 900, 916 S4, 996 S4R, 1000, S2R Monster
That one is gold
62640471A -Ducati Clamp clutch master cylinder S2R1000 '07
That one is silver
https://www.stein-dinse.biz/
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Roast Beef Monster!
Termignoni and Bucci - Italian for pipe and slippers!
S4 Fogarty, S4R 07T, 748, Series 1 Mirage