Specialized Rubber Plug for Internal Cable Routing Port Description: This Specialized Rubber Plug for Internal Cable Routing Port works to replace or introduce rubber plugs intended to cover internal cable routing ports found on Specialized bicycle frames. This special port plug is built with an angled profile, meant to address headtube exit & entry frame ports with an angled shape/appearance. Features: Genuine replacement Specialized parts Port cover for internal cable routing ports Useful for headtube exit/entry ports and other similar ports Solid rubber design