THIS IS AFTERMARKET BUT WILL REPLACE THE STOCK CT90 K1 MODEL THRU THE CT90K3 MODEL. HOWEVER IT WILL ALSO WORK (IF NEEDED)(AS THE PRICE IS RIGHT) ON ALMOST ANY HONDA WHICH HAS THE REAR FENDER AS JUST AN EXTENSION OF THE FRAME, ie STEPTHRU'S CT200 CT90 CT110 (C70-PASSPORTS)CM91 , NOT AS A DIRECT REPLACEMENT, BUT JUST SOMETHING TO BE LEGAL. THE LENS REPLACES OEM NUMBER LENS, TAILLIGHT 33702-077-671 96J/400024$21.50YOU_MUST_PICK_6V_OR_12V: 6_VOLT12_VOLT AFTERMARKET TAIL LENS CT90 K1_TO_K3 CL70K0/K2 (400060) temp out of stockTHIS FITS K1 THRU K3 ONLY. (THIS LENS TAKES A 4X50 LENS SCREW) THE LENS REPLACES OEM NUMBER LENS, TAILLIGHT 33702-077-671 400060$11.99