Jasil Top Racing 15/50 Gear Set for 50cc 2-Stroke Air-Cooled Minarelli Based ScootersSPECIFICATIONS: 15/50No press required! Complete Gear Set!20% Taller GearingRecommended For Use With A Big Bore KitCOMPATIBILITY: CPI – Aragon GP 50 2T, Hussar 50 2T >’03, Oliver 50 2T >’03, Popcorn 50 2T >’03Explorer – Cracker 50 2T Diamo – Velocity 50 2TE-ton – Beamer 50 2T, Matrix 50 2TKeeway – F-ACT 50 2T, Matrix 50 2T, Hurricane (Euro) 50 2T, Flash 50 2T, Focus 50 2T, Hacker 50 2T, Goccia 50 2T, Arn 50 2TMalaguti – F12 Phantom R 50 2T >’07 Qlink – Hawk 50 2T, Rave 50 2T, Star 50 2TTNG – LS 50 2T, SS 50 2TVento – Triton 50 2T, Zip 50 2TJasil Top Racing 15/50 Gear Set for 50cc 2-Stroke Minarelli Clone Engines. +20% Gear Ratio for increased top speed. It is recommended this gear set be used after installing a big bore cylinder kit. A stock engine will not have enough power to make use of a taller gear set.**