... years experience. 1) mixture element. 2) Smooth in appearance. Motorcycle cylinder head1) mixture element. 2) Smooth in appearance. 3)Excellent heat ... kits. Complete motor parts.We are always strict on the quality control and the professional service to our customers.If there ... any question,please feel free to contact with us. JYMP High quality Motorcycle cylinder head (CG,GN,GS,HORSE,JAGUAR)