{"product_id":"wolf-tooth-premium-ec44-aero-headset-for-semi-internal-routing","title":"Wolf Tooth Premium EC44 Aero Headset for Semi-Internal Routing","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eWolf Tooth Premium EC44 Aero Headsets for Semi-Internal Routing are designed and machined right here in our Minnesota headquarters with aircraft-grade 6061 aluminum. They are designed to have an ultra-low stack height, to be lightweight, and durable. Our headsets have three levels of industry-leading custom sealing to protect bearings from the elements and prolong the life of the headset. Available in a seven Color Shop anodized finishes. Premium Headsets with Enduro stainless steel bearings carry a lifetime warranty on the bearings.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for semi-internal cable routing to allow the use of standard 1-1\/8\" stems and headset spacers with bikes that use an EC44 upper \/ lower headset and a 1-1\/8” to 1.5” tapered steerer tube.\u003c\/li\u003e\n\u003cli\u003eOnly compatible with frames designed for through-the-headset routing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003eUse the compression plug that comes with your fork.\u003c\/li\u003e\n\u003cli\u003eSold as a complete upper and lower EC44 Headset.\u003c\/li\u003e\n\u003cli\u003eEnduro stainless steel bearings included.\u003c\/li\u003e\n\u003cli\u003eIncludes 2x 0.3mm plastic shims to help dial in headset compression if necessary.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTech Specs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e\u003cspan\u003e 6061 Aluminum\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eTotal Stack Upper Headset - 20.1mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eTotal Stack Lower Headset - 12.25mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eFor Headtube Internal Diameter - 44mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eCup External Diameter - 56.5mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e52mm 36x45 Upper And Lower Bearings\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWeights:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003eUpper Headset: 73 g\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003eLower Headset: 47 g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePremium stainless steel Enduro bearings for ultimate corrosion protection.\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSix cable ports (two hydraulic brake lines + four mechanical cable lines).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvailable in seven Wolf Tooth anodized colors to match other Wolf Tooth components.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDesigned with the Wolf Tooth triple-sealed system present on all other Wolf Tooth headsets:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003eCustom-molded captive rubber seal at the cable entry ports that stops any water or debris from getting in with the brake hoses or shift cables.\u003c\/li\u003e\n\u003cli\u003eCustom lip seal on the outside of the headset cap interfaces with the frame or EC44 cup to stop any water or debris from getting into upper the bearing.\u003c\/li\u003e\n\u003cli\u003eCustom overmolded dual-lip crown race seal interfaces with frame to stop any water or debris from getting into the lower bearing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eContact sales@wolftoothcomponents.sbs for fitment and compatibility questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMachined in the\u003cspan\u003e \u003c\/span\u003eUSA\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cmeta charset=\"utf-8\"\u003e \u003ca href=\"https:\/\/www.wolftoothcomponents.sbs\/pages\/wolf-tooth-patents-and-trademarks\"\u003ePatent and trademark information\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"Seatpost Clamps Hyperlink\" href=\"https:\/\/www.wolftoothcomponents.sbs\/products\/wolf-tooth-seatpost-clamp\" target=\"_blank\"\u003eSeatpost Clamp\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"Centerlock rotor lockrings collection hyperlink\" href=\"https:\/\/www.wolftoothcomponents.sbs\/collections\/centerlock-rotor-lockrings\" target=\"_blank\"\u003eCenterlock Rotor Lockrings\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"Aero chainrings collection page hyperlink\" href=\"https:\/\/www.wolftoothcomponents.sbs\/collections\/aero-chainrings\" target=\"_blank\"\u003eAero Chainrings\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"GnarWolf and LoneWolf Aero Chainguide hyperlink.\" href=\"https:\/\/www.wolftoothcomponents.sbs\/collections\/chainguides\" target=\"_blank\"\u003eLoneWolf Aero Chainguide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n  \u003cdiv class=\"PdpSqImgLinks\"\u003e\n  \u003ca href=\"https:\/\/www.wolftoothcomponents.sbs\/pages\/headset-fitment-guide\"\u003e\u003cimg height=\"155\" width=\"155\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0230\/9291\/files\/MeasureHeadset_medium.jpg?v=1550605546\"\u003e\u003c\/a\u003e \u003ca title=\"Semi-Internal Headset User Manual\" href=\"https:\/\/www.wolftoothcomponents.sbs\/pages\/semi-internal-headset-user-manual\"\u003e\u003cimg height=\"186\" width=\"155\" alt=\"Semi-Internal Headset User Manual\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0230\/9291\/files\/Semi-Internal_Headset_User_Manual.webp?v=1773328242\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.wolftoothcomponents.sbs\/products\/wolf-tooth-precision-headset-small-parts\"\u003e\u003cimg height=\"155\" width=\"155\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0230\/9291\/files\/ReplacementParts-Headset_160x160.jpg?v=1590086563\" style=\"float: none;\"\u003e\u003c\/a\u003e \u003ca href=\"https:\/\/www.wolftoothcomponents.sbs\/pages\/headset-technical-information\"\u003e\u003cimg height=\"155\" width=\"155\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0230\/9291\/files\/Headset_Tech_c3897e65-a523-4350-8aff-9290078bc929_480x480.jpg?v=1590091876\"\u003e\u003c\/a\u003e \u003cmeta charset=\"utf-8\"\u003e \u003ca href=\"https:\/\/www.wolftoothcomponents.sbs\/pages\/color-shop\"\u003e\u003cimg height=\"155\" width=\"155\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0230\/9291\/files\/ColorShop_Icon_076a0ed1-d684-47b3-9dd7-e0bb13561f8c_160x160.jpg?v=1747163023\" alt=\"Wolf Tooth color shop - choose color components for your bike\"\u003e\u003c\/a\u003e\n\u003c\/div\u003e","brand":"Wolf Tooth","offers":[{"title":"EC44 Upper \u0026 Lower Set \/ Gold","offer_id":41905180934179,"sku":"EC44U-SEIR-GLD","price":219.95,"currency_code":"USD","in_stock":true},{"title":"EC44 Upper \u0026 Lower Set \/ Orange","offer_id":41905180966947,"sku":"EC44U-SEIR-ORG","price":219.95,"currency_code":"USD","in_stock":true},{"title":"EC44 Upper \u0026 Lower Set \/ Red","offer_id":41905180999715,"sku":"EC44U-SEIR-RED","price":219.95,"currency_code":"USD","in_stock":true},{"title":"EC44 Upper \u0026 Lower Set \/ Ultraviolet Purple","offer_id":41905181032483,"sku":"EC44U-SEIR-PRU","price":219.95,"currency_code":"USD","in_stock":false},{"title":"EC44 Upper \u0026 Lower Set \/ Blue","offer_id":41905181065251,"sku":"EC44U-SEIR-BLU","price":219.95,"currency_code":"USD","in_stock":false},{"title":"EC44 Upper \u0026 Lower Set \/ Raw Silver","offer_id":41905181098019,"sku":"EC44U-SEIR-RSIL","price":219.95,"currency_code":"USD","in_stock":true},{"title":"EC44 Upper \u0026 Lower Set \/ Black","offer_id":41905181130787,"sku":"EC44U-SEIR-BLK","price":219.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0230\/9291\/files\/EC44U-SEIR-ORG_3f52a2e4-87d0-4f91-b41d-1ebb288f5bd3.jpg?v=1773242031","url":"https:\/\/www.wolftoothcomponents.sbs\/products\/wolf-tooth-premium-ec44-aero-headset-for-semi-internal-routing","provider":"Wolf Tooth Components","version":"1.0","type":"link"}