Current stock level is: 250-350cc Application: An increase in wearlife; tensile strength and overall performance; without an increase in price! That`s right! The new R-ring features an X-ringshaped seal. As part of their continuing quality improvement program; the RK chain factory has made a running production upgrade on their best selling 520SO standard O-Ring chains. Viewed in cross-section; the RX-ring has two lubrication pools and seal points versus the single seal point/pool design of a regular O-Ring chain..... Photo is for reference only. |
