{"product_id":"praxis-girder-carbon-gen-2-carbon-crank-arms","title":"Girder Carbon Gen 2 Carbon Crank Arms","description":"\u003cp\u003e\u003cstrong\u003ePraxis Girder Carbon Gen2 MTB Crankset – M30\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eGen2 Girder Carbon\u003c\/strong\u003e represents a new generation of high-performance mountain bike cranks. With updated carbon arm shapes, refined spacing, and a rigid \u003cstrong\u003eM30 spindle\u003c\/strong\u003e, this crankset delivers exceptional stiffness, lightweight performance, and precise fitment for trail-focused riders. The updated \u003cstrong\u003e3-bolt direct mount ring interface\u003c\/strong\u003e ensures compatibility with modern MTB chainrings and optimal chainline.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility \u0026amp; Drivetrain\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eRequires Praxis M30 Bottom Bracket (30mm drive bearing, 28mm non-drive bearing)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatible with Praxis MTB rings and Shimano\/SRAM 10- and 11-speed drivetrains\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChainline options: 49mm or 52mm Boost\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUse only Praxis DM rings for correct chainline alignment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSold as \u003cstrong\u003ecrank arms only\u003c\/strong\u003e – M30 BB and DM ring sold separately\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCarbon crank arms with improved clearance for a wide range of MTB frames\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eArm lengths: 165mm \/ 170mm \/ 175mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ-Factor: 178mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e3-Bolt DM ring interface, compatible with any 3-bolt DM ring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e8mm alloy main crank bolt for installation\/self-extraction (50Nm torque)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eM30 spindle\u003c\/strong\u003e – requires Praxis M30 BB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReference weight: 488g ± (170mm set, no ring)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eInstallation tools are \u003cstrong\u003enot included\u003c\/strong\u003e and must be ordered separately\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChainline is critical – do \u003cstrong\u003enot\u003c\/strong\u003e use non-Praxis DM rings on Praxis cranks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Girder Carbon Gen2 is a premium upgrade for riders seeking \u003cstrong\u003elightweight, rigid, and high-performance crank arms\u003c\/strong\u003e for serious trail riding.\u003c\/p\u003e","brand":"Praxis","offers":[{"title":"Black \/ 165mm","offer_id":57434520945014,"sku":"PR-G2-GC165","price":320.0,"currency_code":"GBP","in_stock":true},{"title":"Black \/ 170mm","offer_id":57434520977782,"sku":"PR-G2-GC170","price":320.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/3065\/6691\/files\/girder-carbon-gen-2-carbon-crank-arms-black-165mm-1227127225.jpg?v=1773398770","url":"https:\/\/www.biketart.com\/products\/praxis-girder-carbon-gen-2-carbon-crank-arms","provider":"Biketart","version":"1.0","type":"link"}