{"product_id":"rk-racing-chain-520-so-110-520-series-o-ring-chain-durable-street","title":"RK Racing Chain 520-SO-110 520 Series O-Ring Chain - Durable Street","description":"\u003cp\u003eIn this review the RK Racing Chain 520-SO-110 is presented as a solid, budget-conscious option for riders needing a reliable sealed chain. It is aimed at owners of low to mid-range motorcycles or ATVs up to 400cc who want a traditional round O-ring chain that keeps lubrication sealed and delivers consistent power with minimal drag. The single biggest reason to buy is the balance of durability and value: the SO O-ring compound and 6,900 lb tensile strength deliver dependable service without the premium price of race-oriented chains.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eO-ring construction:\u003c\/strong\u003e The SO O-ring made from Nitrile Butadiene seals lubrication effectively to reduce wear and extend service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile 520 size:\u003c\/strong\u003e The 520 series fits many low to mid-range motorcycles and can be used for both street and off-road up to 400cc.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid tensile strength:\u003c\/strong\u003e A 6,900 lb tensile rating provides a reassuring margin for engines up to the listed 60 HP limit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded master link:\u003c\/strong\u003e The clip-type connecting link simplifies installation and makes chain replacement straightforward for home mechanics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight per length:\u003c\/strong\u003e At about 3.39 lbs per 100 links the chain keeps rotating mass reasonable for everyday riding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe 520-SO-110 is best for riders of commuter bikes, small sport bikes, dual-sport machines, and ATVs in the up to 400cc class who want a sealed O-ring chain that is easy to source and service. It is a practical pick when durability and routine maintenance intervals are important but extreme performance is not the priority.\u003c\/p\u003e\n\u003cp\u003eRiders with high-performance machines above 60 HP, racers, or anyone requiring the lightest, most advanced link coatings or clipless master links should look elsewhere for premium race-spec chains. Also, those who expect zero fitment work should note that fit and master link experience can vary; having basic tools and a shop manual helps.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGood long-term durability and lubrication retention thanks to the Nitrile Butadiene O-ring.\u003c\/li\u003e\n\u003cli\u003eClear value for money compared with higher-end sealed chains, offering solid performance for everyday use.\u003c\/li\u003e\n\u003cli\u003eAppropriate tensile rating and a usable max horsepower and CC envelope for many street and off-road bikes.\u003c\/li\u003e\n\u003cli\u003eMaster link included makes replacement achievable for competent home mechanics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFit and installation experience is mixed among customers, so some riders may need to make minor adjustments or seek help with the master link.\u003c\/li\u003e\n\u003cli\u003eNot intended for high-horsepower or race applications beyond the 60 HP rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003e520-SO (520 Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eO-ring Type\u003c\/td\u003e\n\u003ctd\u003eSO Nitrile Butadiene\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength\u003c\/td\u003e\n\u003ctd\u003e6,900 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax CC \/ Use\u003c\/td\u003e\n\u003ctd\u003e400cc Street, 400cc Off-road\/ATV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Horsepower\u003c\/td\u003e\n\u003ctd\u003e60 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight per 100 Links\u003c\/td\u003e\n\u003ctd\u003e3.39 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaster Link\u003c\/td\u003e\n\u003ctd\u003eClip type included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe RK Racing Chain 520-SO-110 is a dependable, affordable sealed chain for riders of low to mid-range bikes and ATVs up to 400cc. It combines proven SO O-ring lubrication retention with a robust tensile rating, making it a sensible choice for everyday street and off-road use where long life and straightforward maintenance matter more than race-level performance.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this chain be used off-road?\u003c\/strong\u003e\u003cbr\u003eYes, the 520-SO is rated for off-road use up to 400cc and is designed to retain lubrication in harsher conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the master link included suitable for home installation?\u003c\/strong\u003e\u003cbr\u003eThe clip-type master link is included and allows home installation, though some users report mixed ease-of-fit so basic tools and care are recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this chain fit my bike?\u003c\/strong\u003e\u003cbr\u003eThe chain is 520 series and fits bikes specified for that size; verify your OEM chain size and sprocket fitment before purchase.\u003c\/p\u003e","brand":"RK Racing Chain","offers":[{"title":"Default Title","offer_id":48620017811675,"sku":"B007A8OOKW","price":77.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51tx2kXZgrL._AC.jpg?v=1778454612","url":"https:\/\/gearmusthave.com\/products\/rk-racing-chain-520-so-110-520-series-o-ring-chain-durable-street","provider":"GearMustHave","version":"1.0","type":"link"}