High Performance Main Torque Spring for 50cc 2-Stroke Air or Liquid-Cooled Minarelli Based EnginesSIZES: 1000 RPM1500 RPM2000 RPMCOMPATIBILITY: 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 2TThis racing main torque spring will work on the 1PE40QMB Chinese version of the original Minarelli Jog engine. Please check to see if this is compatible with your scooter before placing the order.