Upgrade from the stock 50cc kit to a 60cc kit.. Comes with the head and base gasket.. Ice Bear 50cc 4-Stroke Scooters: Bullet PMZ50-5J (Yongfu), Falcon PMZ50-15, Fury PMZ50-14, Ghost PMZ50-12, Rocket PMZ50-4J, Rocket PMZ50-4 (Yongfu), Shadow PMZ50-1, Gen 1 Maddog PMZ50-19, Gen II Maddog PMZ50-19N, Gen IV Maddog PMZ50-21. Ice Bear 50cc 4-Stroke Trikes: Ace PST50-12, Elf PST50-16, Maddog PST50-19N, Mini Cruzzer PST50-9, Mojo PST50-8, Mojo Magic PST50-1, Pluto PST50-5, Q6 PST50-17, Shark PST50-2.
