{"product_id":"funn-rsx-direct-mount-bike-stem-35mm-adjustable-45-50mm-extension","title":"Funn RSX Direct Mount Bike Stem 35mm - Adjustable 45-50mm Extension","description":"\u003cp\u003eIn this review the Funn RSX Direct Mount Bike Stem is assessed for riders who run dual crown forks and need a stiff, reliable connection between bar and steerer. The single biggest reason to consider the RSX is its combination of a 35mm clamp option and precision CNC 6061 alloy construction, which delivers notable rigidity without adding unnecessary weight. For downhill and aggressive off-road use where clamp strength and durability matter, this stem stands out as a purpose-built choice.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e35mm Bar Clamp:\u003c\/strong\u003e Provides a wider clamp engagement for added stiffness and secure handling on rough terrain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Mount Design:\u003c\/strong\u003e Made specifically for dual crown forks so alignment and fit are simplified for downhill setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6061 Aerospace Alloy:\u003c\/strong\u003e CNC precision manufacturing gives a strong, lightweight structure that holds up to hard use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Extension:\u003c\/strong\u003e Offers both 45mm and 50mm lengths with 20mm and 30mm rise options to tune reach and bar height.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplit Two-Piece Construction:\u003c\/strong\u003e Two-piece layout makes installation around dual crown crowns straightforward while maintaining clamp strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Colors:\u003c\/strong\u003e A range of finishes lets riders match the stem to their bike for a cohesive look.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe RSX suits downhill and aggressive trail riders who run dual crown forks and want a stiff, reliable stem with a 35mm clamp for improved control. Riders who value a lightweight CNC alloy part that gives both 45mm and 50mm extension options will appreciate the adjustability for dialing in reach and rise.\u003c\/p\u003e\u003cp\u003eLess suitable are casual riders or those who use single crown forks and 31.8mm bars, since this listing is the 35mm-only version and is tailored to dual crown systems. Also, riders who need integrated headset functions or a full-service cockpit may prefer a different stem design.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSolid clamp strength and a wider 35mm hold improve front-end stiffness and confidence on rough descents.\u003c\/li\u003e\n\u003cli\u003eLightweight yet rigid thanks to CNC 6061 aerospace grade alloy construction.\u003c\/li\u003e\n\u003cli\u003eBuilt-in adjustable extension gives practical tuning between 45mm and 50mm without swapping parts.\u003c\/li\u003e\n\u003cli\u003eEasy installation on dual crown forks with its split two-piece direct mount layout.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAvailable only in a 35mm clamp version here, so it will not fit 31.8mm handlebars.\u003c\/li\u003e\n\u003cli\u003eDesigned for dual crown forks only, so it is not universal for all mountain bikes.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eDual crown forks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBar clamp diameter\u003c\/td\u003e\n\u003ctd\u003e35mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e6061 aerospace grade alloy (CNC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtension lengths\u003c\/td\u003e\n\u003ctd\u003e45mm and 50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRise options\u003c\/td\u003e\n\u003ctd\u003e20mm and 30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003eDirect mount, split two-piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Funn RSX Direct Mount Stem is a focused choice for downhill and aggressive off-road riders who run dual crown forks and require a sturdy 35mm clamp. Its CNC 6061 construction, adjustable extension, and split mount design deliver good value for riders who need stiffness and easy fitment; just confirm your handlebar diameter before buying.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this fit my 31.8mm handlebar?\u003c\/strong\u003e\u003cbr\u003eNo. This listing is the 35mm clamp version only; check for the 31.8mm model if that is your bar size.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I use this on a single crown fork?\u003c\/strong\u003e\u003cbr\u003eIt is designed specifically for dual crown forks, so it is not intended for standard single crown setups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it come with adjustable reach settings?\u003c\/strong\u003e\u003cbr\u003eYes. The RSX offers built-in adjustment for 45mm and 50mm extension with two rise positions.\u003c\/p\u003e","brand":"Funn","offers":[{"title":"Default Title","offer_id":48265009594587,"sku":"B076P91TTX","price":72.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61sIAsTG6dL._AC_SL1500.jpg?v=1776357790","url":"https:\/\/gearmusthave.com\/products\/funn-rsx-direct-mount-bike-stem-35mm-adjustable-45-50mm-extension","provider":"GearMustHave","version":"1.0","type":"link"}