{"product_id":"rk-racing-chain-gb420mxz126-126-links-gold-mx-chain-lightweight","title":"RK Racing Chain GB420MXZ126 126-Links Gold MX Chain - Lightweight","description":"\u003cp\u003eOur review of the RK Racing Chain GB420MXZ126 finds a focused, no-nonsense replacement chain for minibikes and smaller motocross machines where strength, fit, and appearance matter. The single biggest reason to buy is its combination of lightweight chromoly construction and a verified tensile strength of 5000 pounds per ft, which delivers a durable ride without excessive weight. Riders looking for a direct-fit, visually appealing gold chain with solid build quality will appreciate what this chain offers compared with typical stock grom chains.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eChromoly steel construction:\u003c\/strong\u003e Provides a strong yet light link and roller structure that helps reduce unsprung mass while maintaining durability.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSeamless rollers and bushings:\u003c\/strong\u003e Smooth contact points that improve chain life and reduce noise under normal riding conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eOversized special alloy pins:\u003c\/strong\u003e Offer extra shear resistance, which contributes to the chain's overall tensile strength and real-world durability.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHIT heat treatment:\u003c\/strong\u003e All components are heat-treated with RK's HIT process for consistent hardness and improved wear resistance.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e126-link length with connecting link:\u003c\/strong\u003e Arrives ready to size and install, making it suitable for common minibike and small MX sprocket combinations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe GB420MXZ126 is aimed at riders of small-displacement motocross and pit bikes who want a lightweight, high-strength chain that also improves the bike's appearance. It is a good pick for anyone replacing worn stock chains on machines like small Honda CRF models where a precise fit and dependable strength are priorities.\u003c\/p\u003e\n\u003cp\u003eThose who need extremely heavy-duty industrial drive chains or a different pitch\/length should look elsewhere, as this chain is positioned for motorcycle and powersports drive trains rather than larger commercial applications.\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\u003eSolid build quality from chromoly steel and HIT heat treatment for long life.\u003c\/li\u003e\n \u003cli\u003eVisible durability and fit, with customers reporting it fits models like the 2005 Honda CRF70F well.\u003c\/li\u003e\n \u003cli\u003eAttractive gold finish that many buyers say looks great on the bike.\u003c\/li\u003e\n \u003cli\u003eHigh tensile strength of 5000 pounds per ft gives confidence under load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eLimited to the specified 126-link length and 420 pitch applications, so sizing must match the bike.\u003c\/li\u003e\n \u003cli\u003eAs a performance-oriented chain, occasional adjustment and maintenance are required to preserve life and appearance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eRK Racing Chain\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eGB420MXZ126\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eLinks\u003c\/td\u003e\n\u003ctd\u003e126 links with connecting link\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eChromoly steel with special alloy pins\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eHeat Treatment\u003c\/td\u003e\n\u003ctd\u003eRK HIT (Heat Induction Transfer)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTensile Strength\u003c\/td\u003e\n\u003ctd\u003e5000 pounds per ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe RK Racing Chain GB420MXZ126 is a sensible upgrade for minibike and small MX riders who want a lighter chain that does not sacrifice strength or looks. It delivers reliable tensile performance, precise fit for compatible bikes, and a clean gold finish that many owners appreciate, making it good value for riders replacing worn stock chains.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this chain a direct replacement for small Honda CRF models?\u003c\/strong\u003e\u003cbr\u003eYes, customers report a perfect fit on certain small CRF models like the 2005 CRF70F when the 420 pitch and 126-link length match the bike.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow strong is this chain?\u003c\/strong\u003e\u003cbr\u003eThe chain has a rated tensile strength of 5000 pounds per ft thanks to chromoly construction and RK's HIT heat treatment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include a connecting link?\u003c\/strong\u003e\u003cbr\u003eYes, the product ships with a connecting link for installation and sizing.\u003c\/p\u003e","brand":"RK Racing Chain","offers":[{"title":"Default Title","offer_id":48750492254427,"sku":"B000GTVU4K","price":58.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61ix4ac5POL._AC_SL1000_b896f197-733d-4125-baa7-20570691dcd2.jpg?v=1778838359","url":"https:\/\/gearmusthave.com\/products\/rk-racing-chain-gb420mxz126-126-links-gold-mx-chain-lightweight","provider":"GearMustHave","version":"1.0","type":"link"}