THIS HAS AN 8MM RIGHT HAND THREADED MIRROR HOLE THIS SWITCH WILL WORK ON THE FOLLOWING WE WILL ADD TO THIS LIST AS WE VERIFY FITMENTS CT90 K0 TO K4 _________________________________________________ INSTRUCTIONS FOR CT90 K0 TO K4: BLUE TO BLUE ON BACK OF HEADLIGHT PIGTAIL (HIGH-BEAM) WHITE TO WHITE ON BACK OF HEADLIGHT PIGTAIL (LOW-BEAM) BROWN TO BROWN IN HEADLIGHT BUCKET (TAIL-LIGHT) (BROWN WITH WHITE STRIPE NOT USED) (CAREFUL ON THIS ONE !!) YELLOW FROM SWITCH WIRE TO BLACK IN HEADLIGHT BUCKET (HOT-WITH KEY ON TO POWER LIGHTS) THEN THE INCLUDED SEPARATE PINK JUMPER MALE/MALE WIRE, TO THE YELLOW FEMALE AND THEN JUMPER THE OTHER END OF THE JUMPER WIRE TO THE plastic insulator covered terminal that is ALL WHITE OR WHITE WITH YELLOW BAND, , this is ALSO ALL INSIDE THE HEADLIGHT BUCKET.. this helps the charging circuit S1130/PINK-JUMPER @ LEVER_SET RUBBER TIP_CT90 K1_TO_K5 CL70K3 (LS90K1K5) (S1076/S1077)THIS ITEM IS A SET OR PAIR OF LEVERS FOR THE CT90'S FROM K1 TO K5. IT WILL FIT SOME OF THE LATER CT90KO'S ALSO. THIS PROBABLY FITS ALL CL70'S ? NOT SURE, BUT THE K3 FOR SURE S1076/S1077 @ KNOB FOR OFF ON SWITCH ON CT90 K0 TO K4 HANDLE BAR SWITCH (SOLD_EACH) 7/17P 303G 303G TYPICAL DIAGRAM FOR BIKES WITH LIKE SWITCHES