RK Racing Chains have been the dominating factor for more FIM World Championship teams and AMA World Superbike/Super Sport Teams than any other chain in the past 20 years! RK Racing Chains can withstand the extreme conditions associated with racing better than any other chain on the market. RK Chains are pre-stressed and pre-stretched for maximum performance and long life. RK makes a chain for virtually every bike and type of riding. Championship riders know that RK Chains can handle the extreme demands of motorcycle racing. On road or off, RK Chains are the winner's choice for long lasting, high performance racing chain.
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Standard O-ring : View diagram at left in closer detail to compare the lubrication provided by a standard O-ring and the superior lubrication provided by RK's RX- and XW-rings. You can see the difference! "
RX"-ring Design & Features: RK's "RX-ring" chains feature an X-ring shaped seal. Viewed in cross-section, the "X-ring" has two lubrication pools and seal points versus the single seal point/pool design of a regular o-ring chain. "RX-ring" technology offers less torsional friction, increased high-stress performance and a 30% longer wear life compared to standard o-ring chains. RK's new "RX-ring" chains offer tremendous value, plus true quality and performance. For all but the most demanding high performance applications.
"XW"-ring Design & Features: The "XW-ring" is made of an advanced Nitrile Butadiene composite and features three contact lips and two convex outer stabilizers. This means three lubrication pools to protect against high speed abrasion, extreme heat build up, torsional flex and loss of lubricant. Nitrile Butadiene composite is oil and contaminant resistant and the "XW" seal design is compression and distortion resistant to provide the ultimate in efficiency and performance with absolutely no o-ring drag. The "XW-ring" provides the user with a 50% longer wear life than basic o-ring chains.