{"product_id":"pathgnar-bike-crank-arm-in-square-hole-170mm-black-ebike","title":"PATHGNAR 170mm Square-Taper Ebike Crank Arm, 6061 Forged Aluminum, Black — Size EB04-Crankarm 170mm","description":"\u003cp\u003e\u003cstrong\u003ePATHGNAR's 170mm square-taper ebike crank arm is a forged 6061 alloy replacement crank built for durable, high-strength pedaling on compatible electric bicycles.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis single crank arm is designed specifically for electric bikes that use a square-taper spindle interface. Machined from forged 6061 aluminum, it combines stiffness and impact resistance to withstand e-bike torque while keeping weight low. The arm is available in a 170mm length and comes finished in black, with clear left and right markings for correct installation.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I know this crank arm will fit my ebike?\u003c\/h3\u003e\n\u003cp\u003eCompatibility hinges on two simple checks: spindle interface and crank length. This PATHGNAR crank uses a square-taper spindle, so confirm your bike’s axle is square-tapered and you need a 170mm arm. Also ensure the arm is intended for an e-bike application rather than a specific road or MTB spline system.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm spindle type: square taper required\u003c\/li\u003e\n  \u003cli\u003eConfirm required arm length: 170mm\u003c\/li\u003e\n  \u003cli\u003eIntended use: electric bicycle crank replacement\u003c\/li\u003e\n  \u003cli\u003eCheck left\/right orientation markings before install\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and strength can I expect from this crank?\u003c\/h3\u003e\n\u003cp\u003eThe PATHGNAR crank arm is forged from 6061 aluminum alloy, a common high-strength bike material that balances rigidity and light weight. Forging improves grain structure and durability compared with cast alternatives, so the arm resists bending and maintains pedal feel under higher loads typical of e-bike motors.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eForged 6061 alloy for improved toughness and fatigue life\u003c\/li\u003e\n  \u003cli\u003eHigh hardness to minimize deformation under torque\u003c\/li\u003e\n  \u003cli\u003eBlack finish for corrosion protection and aesthetic match\u003c\/li\u003e\n  \u003cli\u003eLeft\/right-specific stamping to ensure correct fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install and maintain the PATHGNAR crank arm?\u003c\/h3\u003e\n\u003cp\u003eInstallation requires matching left (L) and right (R) arms to their respective sides and seating onto a square-taper spindle. Tighten the crank bolt to the manufacturer torque spec and check chainline. If you’ve previously replaced a crank, consider the bottom bracket condition—many units need replacement after multiple crank swaps.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMatch L and R markings to correct sides\u003c\/li\u003e\n  \u003cli\u003eTighten to recommended torque for your bike\u003c\/li\u003e\n  \u003cli\u003eReplace bottom bracket if it shows wear or after multiple crank changes\u003c\/li\u003e\n  \u003cli\u003eContact PATHGNAR support for fit or installation help\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this crank arm perform under ebike loads and rough use?\u003c\/h3\u003e\n\u003cp\u003eDesigned for electric bicycle applications, the forged 6061 construction provides strong pedal transfer and resistance to deformation under higher torque. While robust, performance depends on proper installation and a compatible bottom bracket; mismatched interfaces or worn bearings reduce longevity. PATHGNAR offers customer support if you encounter fitment or durability questions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEngineered for e-bike torque when used on square-taper spindles\u003c\/li\u003e\n  \u003cli\u003eDurable finish and forging reduce wear and surface damage\u003c\/li\u003e\n  \u003cli\u003eReplace related components (bottom bracket) as recommended\u003c\/li\u003e\n  \u003cli\u003eSupport available for troubleshooting and returns\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The PATHGNAR 170mm square-taper crank arm suits riders restoring or upgrading electric bicycles that use a square spindle and require a 170mm arm. It’s aimed at DIY mechanics, ebike repair shops, and riders who prioritize a durable, forged alloy replacement in a sleek black finish. If you need a crank built specifically for spline or integrated axle systems, choose a product made for those interfaces instead; if you’re unsure about fitment, measure your spindle and consult PATHGNAR support before purchase.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this crank arm compatible with all ebikes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. It fits ebikes using a square-taper spindle and requiring a 170mm arm; verify your spindle type and length first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need to replace the bottom bracket when changing this crank?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Often recommended if the bottom bracket shows wear or you’ve replaced cranks before; older BBs can shorten new crank life.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"PATHGNAR","offers":[{"title":"Default Title","offer_id":48021438791841,"sku":"B0GFWKCFNF","price":73.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/6532\/5729\/files\/pathgnar-crank-arm-front-view.jpg?v=1791312774","url":"https:\/\/canadiansporting.ca\/products\/pathgnar-bike-crank-arm-in-square-hole-170mm-black-ebike","provider":"Canadian Sporting","version":"1.0","type":"link"}