Awesome price for a high quality x ring chain. Looks good and will hold up to the abuse of sportbikes
As part of their continuing quality improvement program, the RK Chain Factory has made a running production upgrade to their best selling 525XSO chain. The new upgrade GBXSO and non-gold XSO chains features RK's proprietary "RX-Ring" seal design and is offered in 520, 525 and 530 versions. Viewed in cross-section, the RK "RX-Ring" has two lubrication pools and seal points versus the single seal point / pool design of a regular O-ring chain. RK's new GBXSO chains offer quality, performance and unbeatable value, for all but the most demanding high performance applications.