Motorcycle Cylinder Head Generator Seal CBR919RR 1992-2007 Works for Fit For CBR900RR CBR919RR 1992-1999 CB900F CB919 Hornet 02-07 cylinder head generator clutch engine covers Aligns bolt holes oil passages directly,no grinding or extra auxiliary parts needed Balances internal oil pressure,blocks oil leakage during long distance rpm riding Multi layer composite sheet, die cut contours,smooth even contact plane OEM consistent thickness full outline size for tight fit with engine housings