Wich one will make my mini baja HT65 mini bike Run faster??
http://www.affordablegokarts.com/mm5/merchant.mvc?Screen=PROD&Store_Code=A&Product_Code=AGK664&Category_Code=GGPP5
http://www.affordablegokarts.com/mm5/merchant.mvc?Screen=PROD&Store_Code=A&Product_Code=AGK662&Category_Code=GGPP5
http://www.affordablegokarts.com/mm5/merchant.mvc?Screen=PROD&Store_Code=A&Product_Code=AGK664&Category_Code=GGPP5
http://www.affordablegokarts.com/mm5/merchant.mvc?Screen=PROD&Store_Code=A&Product_Code=AGK662&Category_Code=GGPP5