NCY Unrestricted Racing CDI Unit for 50cc – 150cc GY6 Scooters COMPATIBILITY: BMS – Apache 50 4T, Heritage 50 4T Diamo – Classic 50 4T Gilera – Capri 50 4T, Ciclone 50 4T Lance – Charming 50 4T, GTR 50 4T Roketa – Bahama 50 4T, Maui 50 4T, Sicily 50 4T Tank – Urban 50 4T, Sporty 50 4T, Viaggio 50 4T Many Other 50cc 139QMB Based Engines **This will not work on the QJ models This NCY performance scooter CDI igniter module works on most current AC GY6 50cc/150cc scooters