Special Notes:Notes for Kit Item: Primary Drive 520 ORH Gold X-Ring Chain 520x118For all Honda CRF bikes, and others that have a 1" diameter countershaft, Use Part # 2086080001. -All match original equipment exactly for perfect fit and size. -The ORH Gold X-Ring chain is Primary Drives best off-road chain for performance and durability. Features gold plating on the plates. -X-Ring shape provides an outstanding seal with reduced friction. -Average tensile strength 8,120 lbs.