{"product_id":"gb420mxz-114-heavy-duty-mx-sx-racing-chain-for-serious-racers","title":"GB420MXZ-114 Gold 114 Link Heavy Duty MX Racing Chain - Lightweight","description":"\u003cp\u003eIn this review of the GB420MXZ-114 racing chain, the bottom line is simple: this chain is for serious motocross racers who need the lightest non O-ring chain that still delivers exceptional tensile strength. The reviewer found the chain stands out for its chrome-moly construction, oversized alloy pins and heat-treated components, which combine to offer a high strength-to-weight ratio for 50cc to 125cc open class racing. For riders who prioritize durability and reduced rotating mass over O-ring sealing, this chain earns strong consideration.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome-moly construction:\u003c\/strong\u003e Provides a high strength base material that resists deformation under heavy loads encountered in motocross use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOversized alloy pins:\u003c\/strong\u003e Designed to increase joint strength and reduce the risk of pin shear during hard landings and aggressive acceleration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeamless rollers and bushings:\u003c\/strong\u003e Deliver smooth articulation and consistent engagement with the sprocket for reliable power transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHIT heat treatment:\u003c\/strong\u003e The Heat Induction Transfer process hardens components for improved wear resistance and longer service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh tensile rating:\u003c\/strong\u003e A 5000 ft-lb maximum tensile strength gives confidence for professional-level 50cc to 125cc competition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight design:\u003c\/strong\u003e Weighing about 1.76 lb, the chain reduces rotating mass which helps throttle response and acceleration.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe GB420MXZ-114 is aimed at competitive motocross riders and professionals running 50cc to 125cc open class bikes who want a non O-ring chain that prioritizes low weight and high tensile strength. It is particularly suited for riders who replace stock chains with a stronger, lighter option and who perform regular maintenance rather than relying on O-ring lubrication seals.\u003c\/p\u003e\u003cp\u003eRiders who want low-maintenance, sealed longevity from an O-ring chain or who need a chain for larger displacement bikes should look elsewhere, as this model is optimized for small-displacement open class racing and the non O-ring design trades sealed lubrication for reduced weight.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh tensile strength and oversized pins provide excellent \u003cstrong\u003echain strength\u003c\/strong\u003e under racing loads.\u003c\/li\u003e\n\u003cli\u003eLightweight construction improves throttle response and handling for small-displacement race bikes.\u003c\/li\u003e\n\u003cli\u003eHeat-treated components increase wear resistance, contributing to notable \u003cstrong\u003edurability\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eGold finish offers a clean, race-ready look that many riders appreciate.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe non O-ring design means more frequent lubrication and maintenance compared with sealed chains.\u003c\/li\u003e\n\u003cli\u003eSpecifically targeted to 50cc to 125cc open class use, so may not be ideal for larger motorcycles.\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\u003eGB420MXZ-114 (420 Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinks\u003c\/td\u003e\n\u003ctd\u003e114\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin length\u003c\/td\u003e\n\u003ctd\u003e15.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum tensile strength\u003c\/td\u003e\n\u003ctd\u003e5000 ft-lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.76 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaster link type\u003c\/td\u003e\n\u003ctd\u003eClip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003eNon O-ring, chrome-moly with HIT heat treatment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe GB420MXZ-114 is a focused race chain that delivers a winning combination of low weight and high tensile strength for 50cc to 125cc motocross competition. For racers willing to accept the extra maintenance of a non O-ring setup, it represents strong value thanks to its durable, heat-treated construction and race-oriented design.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this chain suitable for 125cc motocross bikes?\u003c\/strong\u003e\u003cbr\u003eYes, the GB420MXZ is specified for professional level 50cc to 125cc open class racing and its 5000 ft-lb tensile rating supports that use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the chain include a master link?\u003c\/strong\u003e\u003cbr\u003eThe product uses a clip-style master link, which is included to join the 114-link length.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow often does a non O-ring chain need servicing?\u003c\/strong\u003e\u003cbr\u003eNon O-ring chains like this require regular cleaning and lubrication more frequently than O-ring chains to maintain wear life and performance.\u003c\/p\u003e","brand":"RK Racing Chain","offers":[{"title":"Default Title","offer_id":48154869498075,"sku":"B000GTXT1W","price":49.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61ix4ac5POL._AC_SL1000_00338a3e-cd79-47bd-b637-dc038e9b7a1b.jpg?v=1768845691","url":"https:\/\/gearmusthave.com\/products\/gb420mxz-114-heavy-duty-mx-sx-racing-chain-for-serious-racers","provider":"GearMustHave","version":"1.0","type":"link"}