Sunstar is the largest OEM & aftermarket supplier of motorcycle & ATV sprocket & disk rotors in the world - manufacturing sprockets for every major Japanese motorcycle builder since 1946. Sunstar Engineering Americas handles Sunstar's aftermarket motorcycle sprocket & chain business for the United States & Canada. This product line includes our standard steel, OEM replacement front and rear sprockets; high performance race quality aluminum rear sprockets; the unique Works Z stainless steel rear off road sprockets; our full line of heavy duty & Works level motorcycle & ATV chains. Sunstar prides itself on providing the highest quality, best performing products possible focusing on durability, yet maintaining an affordable price. Our products are available from just about every motorcycle dealer in the U.S. and Canada through our distribution network.