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SO O-Ring Motorcycle Chain Series

O-Ring Seal
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520SO O-Ring Chain

RK’s traditional round O-ring chain is a convenient blend of performance and affordability.  SO’s O-ring is constructed from Nitrite Butadiene to seal in lubrication and deliver smooth power with minimal seal ring drag or loss of horsepower. 520SO chains are suitable for low to mid-range CC motorcycles that came from the factory with sealed chains. 520SO can be used for both on street and off-road up to 400ccs. 520SO is available only in natural finish.

520SO chains will feature RK’s 20,000 warranty. See the warranty page for details.

** NEW ** NOW AVAILABLE IN GOLD

chain specification chart for 520SO chains. tensile strength of 6,900 lbs and weight of 3.39 lbs

520SO O-Ring Motorcycle chains are now available in GOLD and Non-Gold.

Is It Time To Replace Your Chain?

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RK Motorcycle Chains technical Specifications