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SAYS "MADE IN JAPAN" RIGHT ON THE LENS I FOUND 40 OF THESE IN MY STORAGE SHED NIB I GOT THEM LIKE 7 YEARS AGO, THEY ARE OEM QUALITY,, BUT AFTERMARKET

HONDA STARTED THE CT90KO PRODUCTION WITH THIS LENS THEN SWITCHED TO ANOTHER, BUT THEN WENT BACK TO THIS ONE.SO MOST KO'S WILL HAVE THIS LENS. I THINK MOST? THIS LENS TAKES A 4 X 45 MM SCREW (i think the 50mm will work).