Each kit contains one front and one rear sprocket, as well as the corresponding chain type. The fitment guide uses the manufacturers recommended chain grade, upgrade chain kits may also be available.Chain and Sprocket Kit Compatibility. Actual products supplied may vary in appearance. If you are unhappy with your order, we will happily accept the return of your item(s) within 60 days provided. If it's a helmet, the Pinlock Insert is not fitted (unless fitted as standard during the manufacturing process). The visor film should also remain on the helmet. Please note that you will be responsible for the costs of returning the goods to us unless we delivered the item to you in error or the item is faulty.