{"product_id":"did-520dz-120-gold-120-link-high-performance-non-o-ring-chain","title":"DID 520DZ-120 Gold 120 Link High Performance Non-O-Ring Chain","description":"\u003cp\u003eIn this review of the DID 520DZ-120 chain the bottom line is simple: this is a budget-friendly, high-performance non-sealed racing chain built for riders who need strength and a premium finish without a premium price. The chain is clearly aimed at motocross and ATV riders up to 450cc who demand a durable drive link that resists kinking and looks the part. Our review highlights real-world durability, simple installation with the included clip style master connecting link, and the tradeoff that this is not an O-ring sealed design.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace-focused construction:\u003c\/strong\u003e The 520DZ2 design prioritizes high-performance use on demanding MX tracks, providing reliable power transfer under aggressive riding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh tensile strength:\u003c\/strong\u003e Rated for ATVs and motorcycles up to 450cc with a 7870 pound tensile strength, it gives confidence that the chain will withstand heavy loads and hard landings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSDH technology:\u003c\/strong\u003e Built with DID's SDH engineering to cope with grueling conditions, which helps maintain chain integrity over rough terrain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistinctive finish:\u003c\/strong\u003e Gold outer plates and black inner links offer a premium look that many customers noted as a standout cosmetic upgrade for their bike.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClip style master link included:\u003c\/strong\u003e The chain arrives ready for a straightforward connection using the supplied clip style master connecting link, keeping installation simple in the field or the garage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe 520DZ-120 is best for motocross racers, weekend MX riders, and ATV owners running engines up to 450cc who want a strong, attractive chain that performs under harsh track conditions. It suits riders who prioritize tensile strength and a budget-friendly price over sealed, long-life O-ring lubrication systems.\u003c\/p\u003e\n\u003cp\u003eRiders who need low-maintenance, sealed chains with factory O-rings for extended life or street-focused motorcycles with long highway mileage may want to look elsewhere; this is a non-sealed racing chain designed for performance and track durability rather than maximum lubrication retention.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStrong 7870 lb tensile rating gives confidence under heavy loads and aggressive riding.\u003c\/li\u003e\n\u003cli\u003eNoticeable premium finish with gold outer plates and black inner links that many buyers said \"looks great\".\u003c\/li\u003e\n\u003cli\u003eGood value for performance, with several customers praising durability and resistance to kinking or rust.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNon-sealed design means it lacks O-ring sealing; some buyers expected an O-ring chain and noted that difference.\u003c\/li\u003e\n\u003cli\u003eClip style master link may be less convenient than modern rivet-style links for some applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e520DZ-120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eDZ2 High Performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinks\u003c\/td\u003e\n\u003ctd\u003e120 links\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength\u003c\/td\u003e\n\u003ctd\u003e7870 pounds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Use\u003c\/td\u003e\n\u003ctd\u003eATV\/Motorcycle up to 450cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eGold outer plates, black inner links\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaster Link\u003c\/td\u003e\n\u003ctd\u003eClip style connecting link included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe DID 520DZ-120 is a practical choice for riders who need a tough, attractive racing chain that holds up on demanding MX tracks without a high price tag. Its high tensile rating, SDH-focused build, and solid finish make it a smart buy for dirt riders and ATV enthusiasts, though those wanting O-ring sealing for extended lubrication retention should consider a different model.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this an O-ring chain?\u003c\/strong\u003e\u003cbr\u003eNo. The 520DZ-120 is a non-sealed racing chain; several customers have noted it is not an O-ring design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my 450cc dirt bike?\u003c\/strong\u003e\u003cbr\u003eYes. The chain is rated for ATVs and motorcycles up to 450cc and has a 7870 lb tensile strength suitable for those engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it come with a master link?\u003c\/strong\u003e\u003cbr\u003eYes. A clip style master connecting link is included for installation.\u003c\/p\u003e","brand":"DID","offers":[{"title":"Default Title","offer_id":48659964657883,"sku":"B0065G36TU","price":58.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81J7OsvxnzL._AC_SL1500.jpg?v=1778686273","url":"https:\/\/gearmusthave.com\/products\/did-520dz-120-gold-120-link-high-performance-non-o-ring-chain","provider":"GearMustHave","version":"1.0","type":"link"}