Description:

Mounting hole distance:50mm/2.0";Intake valve diameter:18.6mm/0.73",Exhaust valve diameter:16mm/0.63";Valve length:64mm/2.5".(As the picture shows). cylinder replacement part.High toughness,corrosion resistance,rustproof and durable.Has a good heat dissipation structure design,providing reliable performance and long life service.. Fit for 4 stroke GY6 49cc 50cc Scooter Moped ATV.(read description for fitment infos).