{"product_id":"rk-racing-chain-m520hd-120-03-m520hd-120-120-link-520-chain-heavy","title":"RK Racing Chain M520HD-120-03 M520HD-120 120-Link 520 Chain - Heavy","description":"\u003cp\u003eIn this review the RK Racing Chain M520HD 120-link pack is evaluated for riders who need a robust, ready-to-fit replacement chain for midweight motorcycles. The bottom line: this three-pack of standard non O-ring 520 chains delivers clear value by combining Japanese steel components and two-point riveted construction in a pre-stressed, pre-stretched package that reduces early adjustment. It is best for routine street or off-road use up to about 400cc where straightforward clip-style master links and predictable tensile strength matter more than premium sealed chain benefits.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eJapanese steel construction:\u003c\/strong\u003e The chain is made in Malaysia from Japanese steel, which provides consistent material quality and durability compared with lower-grade alternatives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-point riveted pins:\u003c\/strong\u003e Two-point riveting increases joint strength and helps the chain resist pin pullout during hard use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-stressed and pre-stretched:\u003c\/strong\u003e Reduces initial elongation and the need for frequent early adjustments after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh tensile capacity:\u003c\/strong\u003e A maximum tensile rating of 7700 pounds\/ft gives a solid safety margin for most 400cc street and off-road applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvenient pack size:\u003c\/strong\u003e The three-pack supply is useful for riders who service multiple bikes or prefer to keep spares on hand.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe RK M520HD is well suited for riders of single and twin motorcycles up to around 400cc who want a heavy-duty 520-series chain that installs with a clip-style master link and needs minimal break-in attention. Mechanics who prefer Japanese-spec components and a pre-stretched chain will appreciate the straightforward fit and feel.\u003c\/p\u003e\u003cp\u003eIt is not the ideal choice for riders who require sealed O-ring chains for extended lubrication life, or for high-displacement sportbikes that demand higher rated or specialized chains. Also, anyone prioritizing rust resistance above other factors should consider corrosion-treated alternatives.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStrong construction with two-point riveted pins for reliable joint strength.\u003c\/li\u003e\n\u003cli\u003ePre-stressed and pre-stretched to cut down on early adjustments after installation.\u003c\/li\u003e\n\u003cli\u003eGood value and convenient three-pack for spares or multiple bikes.\u003c\/li\u003e\n\u003cli\u003eMade to Japanese specs with consistent material quality.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNot an O-ring chain, so it requires more frequent lubrication and offers less contamination protection.\u003c\/li\u003e\n\u003cli\u003eSome users report mixed long-term durability and rust issues, so finish and corrosion resistance may vary.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003e520\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinks\u003c\/td\u003e\n\u003ctd\u003e120 links (per chain)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile\u003c\/td\u003e\n\u003ctd\u003e7700 pounds\/ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin length\u003c\/td\u003e\n\u003ctd\u003e18.80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin center\u003c\/td\u003e\n\u003ctd\u003e15.875 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3.65 lb per 100 links\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaster link\u003c\/td\u003e\n\u003ctd\u003eClip type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe RK Racing M520HD 120-link chain pack is a practical, value-oriented choice for midweight street and off-road motorcycles where strength and ease of replacement matter. It offers solid construction, respectable tensile capacity, and reduced initial stretch because it is pre-stressed, making it a sensible buy for riders who will maintain it regularly but do not need O-ring sealing or premium corrosion protection.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCan this chain fit my 400cc street motorcycle?\u003c\/strong\u003e\u003cbr\u003eYes; the chain is rated for up to about 400cc street and NA off-road applications and uses standard 520 sizing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the chain include connecting links?\u003c\/strong\u003e\u003cbr\u003eEach chain uses a clip-type master link for joining; the pack provides standard connecting links.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it require frequent adjustment out of the box?\u003c\/strong\u003e\u003cbr\u003eBecause the chains are pre-stressed and pre-stretched they typically need fewer initial adjustments than untreated chains, though routine maintenance is still required.\u003c\/p\u003e","brand":"RK Racing Chain","offers":[{"title":"Default Title","offer_id":48189649191131,"sku":"B097FFKWX7","price":136.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61aOvO1-04L._AC_SL1000_ab867c2d-b85c-462a-9edb-f72e0928ae65.jpg?v=1769708157","url":"https:\/\/gearmusthave.com\/products\/rk-racing-chain-m520hd-120-03-m520hd-120-120-link-520-chain-heavy","provider":"GearMustHave","version":"1.0","type":"link"}