Prima 72cc Big Bore Cylinder Kit 47mm for 50cc 2-Stroke A/C Minarelli Based ScootersINCLUDES: Cylinder BlockBillet HeadPiston Piston Rings10mm Wrist PinCirclipsCOMPATIBILITY: Aprilia – Gulliver 50 2T, Rally 50 2T, Scarabeo 50 2T, Sonic 50 2T, SR 50 2T ’94-97 Benelli – 491 GT 50 2T, K2 50 2T, K2 Naked 50 2T, Pepe 50 2TBeta – Ark 50 2T, Chrono 50 2T, Tempo 50 2TCPI – Hussar 50 2T ’02, Popcorn 50 2T ’02 – Buddy 50 2T, Rough House 50 2T, Rattler 50 2TMalaguti – F10 50 2T, F12 Phantom 50 2T ’00, F15 Firefox 50 2T, Yesterday 50 2T, Ciak 50 2T, Centro SL 50 2TMBK – Equalis, Evolis, Fizz, Flipper, Forte, Hot Champ, Mach G, Ovetto 50, Sorriso ’96PGO – Ligero 50 2T, Big Max 50 2T, Comet 50 2T, Galaxy 50 2T, Star 50 2T, T-Rex 50 2TYamaha – Axis 50 2T, Breeze 50 2T, Jog 50 2T, NEO S 50 2T, Why 50 2T, Zest 50 2T, Vino 50 2T, Zuma 50 2T ’02-11Cylinder kit by Prima for modern Minarelli 50 cc engines.Looking for more performance upgrades This cylinder is also available as part of our Stage 2 B