Quality. Durability. Price. Since 1946 Sunstar is the world's largest original equipment and aftermarket supplier of motorbike sprockets, manufacturing sprockets for all major motorbikes in Japan, Europe and the United States since 1946. With a complete product line that includes durable standard steel replacement sprockets, factory aluminium racing products, Powerdrive countershaft sprockets and the exclusive lightweight stainless steel sprocket known as the Factory Z, Sunstar can meet any sprocket need. Sunstar prides itself on delivering high performance products that focus on quality, price and functionality. Their steel products are imported from European subsidiaries, while the aluminium products are manufactured in European countries.