{"product_id":"shiftmass™-arc-knob-head-copy","title":"ShiftMass™ Apex — Knob Head","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe ShiftMass™ Apex Head is the lightest of the three launch heads at 120g. An extended profile wrapped in hand-sewn Charcoal Alcantara, framed top and bottom with anodized aluminum caps. Choose your cap color to accent the wrap.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eLike every ShiftMass head, Apex threads onto the base — no adapters needed.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eAlready own a ShiftMass Complete System? Swap to Apex by hand. The base stays where it is; the head threads on cleanly.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eShiftMass™ Apex Head in Charcoal Alcantara\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e120g head weight — lightest in the launch lineup\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eExtended profile for a taller, more visible hand position\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCharcoal Alcantara, hand-wrapped and sewn in-house\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCompatible with all current and future ShiftMass bases\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eHand-swap design — no tools required once the base is set\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBuilt entirely in a small USA machine shop in Texas\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eAluminum core machined from 6061-T6\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eAlcantara wrapped and sewn in-house\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eDesigned, machined, wrapped, and assembled by hand\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eHead-only product. Requires a ShiftMass™ Weight-Adjustable Base, sold as part of our Complete System kits.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eWorks with every ShiftMass Complete System — Standard Lockout and Large Lockout.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNot sure which system fits your car? Check the Complete System fitment guide, or message us with your vehicle — we'll verify before shipping.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eStreet Machine Works\u003c\/p\u003e","brand":"StreetMachineWorks","offers":[{"title":"Polished Black Anodized \/ 6-Speed • R Lower Right","offer_id":54064164929811,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"Polished Black Anodized \/ 6-Speed • R Upper Left","offer_id":54073809273107,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"Polished Black Anodized \/ 5-Speed • R Lower Right","offer_id":54073809305875,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"Polished Black Anodized \/ 5-Speed • R Upper Left","offer_id":54073809338643,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"Polished Black Anodized \/ No Engraving","offer_id":54073809371411,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Grey Anodized \/ 6-Speed • R Lower Right","offer_id":54064164962579,"sku":null,"price":95.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Grey Anodized \/ 6-Speed • R Upper Left","offer_id":54073809404179,"sku":null,"price":95.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Grey Anodized \/ 5-Speed • R Lower Right","offer_id":54073809436947,"sku":null,"price":95.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Grey Anodized \/ 5-Speed • R Upper Left","offer_id":54073809469715,"sku":null,"price":95.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Grey Anodized \/ No Engraving","offer_id":54073809502483,"sku":null,"price":95.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Gold Anodized \/ 6-Speed • R Lower Right","offer_id":54064164995347,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Gold Anodized \/ 6-Speed • R Upper Left","offer_id":54073809535251,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Gold Anodized \/ 5-Speed • R Lower Right","offer_id":54073809568019,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Gold Anodized \/ 5-Speed • R Upper Left","offer_id":54073809600787,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Gold Anodized \/ No Engraving","offer_id":54073809633555,"sku":null,"price":85.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/2562\/8435\/files\/APEXBLACKHEAD79.jpg?v=1776441958","url":"https:\/\/shiftmass.com\/products\/shiftmass%e2%84%a2-arc-knob-head-copy","provider":"ShiftMass Systems","version":"1.0","type":"link"}