{"product_id":"kyosho-fa631-steel-spool-cup-fzd2","title":"Kyosho FA631 Steel Spool Cup (FZD2)","description":"Boost your FAZER D2's drivetrain reliability with this precision-engineered steel spool cup. The FA631 delivers superior durability where the spool meets bearings and diff components, resisting wear and maintaining consistent engagement for predictable drift performance. A straightforward swap using standard tools—simply remove the assembly, inspect seals, install the cup with proper fastener orientation, and verify smooth rotation. Essential maintenance for serious hobbyists seeking optimal spool fit and minimal play during setup tuning.","brand":"Kyosho","offers":[{"title":"Default Title","offer_id":52752495608084,"sku":"Kyosho FA631","price":693.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/0064\/9236\/files\/fa631_1.webp?v=1783322867","url":"https:\/\/banzaihobby.com\/products\/kyosho-fa631-steel-spool-cup-fzd2","provider":"BanzaiHobby","version":"1.0","type":"link"}