{"product_id":"35mm-direct-mount-mountain-bike-stem-adjustable-45-50mm-extension","title":"35mm Direct Mount Mountain Bike Stem - Adjustable 45-50mm Extension","description":"\u003cp\u003eIn this review the RSX 35mm direct mount stem is judged as a focused choice for riders who run dual crown forks and want a sturdy, adjustable stem that does not add undue weight. The bottom line: this stem is for aggressive trail and downhill riders who need a precise fit and the ability to swap between a 45mm and 50mm effective extension without buying multiple stems. Build quality and clamp strength are the single biggest reasons to consider it.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e35mm bar clamp:\u003c\/strong\u003e The larger clamp diameter provides enhanced rigidity and better support for wider or heavier handlebars used in aggressive riding.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect mount design:\u003c\/strong\u003e Made specifically for use with dual crown forks, it installs cleanly on downhill and freeride setups for a precise cockpit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6061 aerospace alloy:\u003c\/strong\u003e CNC manufacturing from 6061 alloy gives a strong, lightweight platform that resists flex under hard braking and heavy landings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable extension:\u003c\/strong\u003e Built-in adjustment lets riders switch between 45mm and 50mm lengths with 20mm and 30mm rise for tailored fit without extra parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSplit two-piece design:\u003c\/strong\u003e The two-piece configuration eases installation and offers secure clamping while keeping service straightforward.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple colors:\u003c\/strong\u003e A range of finishes makes it possible to match the stem to a bike's aesthetic for a cohesive build.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis stem is aimed at downhill, freeride and aggressive trail riders who run dual crown forks and want a compact, robust direct mount option that reduces cockpit flex. Riders who value a mix of low weight and high clamp strength will appreciate the 35mm interface and 6061 alloy construction.\u003c\/p\u003e\u003cp\u003eIt is not the best choice for riders with 31.8mm handlebars, since this version is 35mm only, or for those who need a long or highly adjustable range beyond the supplied 45mm and 50mm extensions. Cross-country riders seeking ultralight parts with minimal rise should look elsewhere.\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 clamp strength and rigidity from the 35mm design and CNC 6061 alloy construction.\u003c\/li\u003e\n\u003cli\u003eSimple, practical adjustment between 45mm and 50mm extension for dialing fit on the trail.\u003c\/li\u003e\n\u003cli\u003eDirect mount form factor made specifically for dual crown forks, simplifying installation on downhill rigs.\u003c\/li\u003e\n\u003cli\u003eAvailable in several colors to match bike builds and components.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eOnly available in 35mm for this variation, so riders with 31.8mm bars must choose a different version.\u003c\/li\u003e\n\u003cli\u003eLess suited to riders needing a wider range of extension or custom rise beyond the built-in options.\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\u003eDirect mount for dual 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\u003eCNC 6061 aerospace grade alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment\u003c\/td\u003e\n\u003ctd\u003e45mm or 50mm extension with 20mm and 30mm rise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003eTwo-piece split direct mount stem\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended use\u003c\/td\u003e\n\u003ctd\u003eDownhill and off-road\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe RSX 35mm direct mount stem is a sturdy, well-made option for riders using dual crown forks who need a reliable, adjustable extension without extra weight. Its CNC 6061 construction and strong clamping make it good value for aggressive trail and downhill riders, provided you have a 35mm handlebar and do not need a wider adjustment range.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this stem compatible with 31.8mm bars?\u003c\/strong\u003e\u003cbr\u003eNo. This variation is 35mm only; confirm your handlebar diameter before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I change the extension length in the field?\u003c\/strong\u003e\u003cbr\u003eThe stem offers built-in positions for 45mm and 50mm; switching requires basic tools but no additional parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the stem made from?\u003c\/strong\u003e\u003cbr\u003eIt is CNC manufactured from 6061 aerospace grade alloy for a balance of strength and low weight.\u003c\/p\u003e","brand":"Funn","offers":[{"title":"Default Title","offer_id":48233457844443,"sku":"B076PG3FCM","price":72.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61F_7akZvCL._AC_SL1500.jpg?v=1770806365","url":"https:\/\/gearmusthave.com\/products\/35mm-direct-mount-mountain-bike-stem-adjustable-45-50mm-extension","provider":"GearMustHave","version":"1.0","type":"link"}