{"product_id":"ritchey-comp-cartridge-logic-e-semi-integrated-upper-zs-headset-rt33030817020","title":"Ritchey Comp Cartridge Logic-E Semi Integrated Upper ZS Headset RT33030817020","description":"\u003cp\u003eEngineered for modern e-bike and performance builds, the Ritchey WCS Logic-E 1.5″ Semi-Integrated ZS Upper Headset delivers a precise, smooth steering interface with clean internal cable management. Built with integrated routing channels and durable sealed bearings, it offers the reliability and sleek front-end aesthetic demanded by today’s advanced frames. Designed to work with any standard stem, it’s a refined, lightweight solution for discerning riders and builders.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003cbr\u003e • Integrated cable and wire routing for clean cockpit setups\u003cbr\u003e • Compatible with standard stems—no proprietary parts needed\u003cbr\u003e • Durable sealed cartridge bearings ensure smooth performance\u003cbr\u003e • Low stack height for a sleek, compact front end\u003cbr\u003e • Designed specifically for modern e-bike and performance applications\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cbr\u003e \u003cstrong\u003eMaterial:\u003c\/strong\u003e Nylon and glass-fibre composite\u003cbr\u003e \u003cstrong\u003eStack Height:\u003c\/strong\u003e 22.2 mm\u003cbr\u003e \u003cstrong\u003eHeadtube Compatibility:\u003c\/strong\u003e 55\/61 mm or 56\/62 mm\u003cbr\u003e \u003cstrong\u003eSHIS Standard:\u003c\/strong\u003e ZS55\/28.6 (1.5″) – ZS56\/28.6 (1.5″)\u003cbr\u003e \u003cstrong\u003eBearings:\u003c\/strong\u003e 51.85\/40 mm (45°\/45°) sealed cartridge\u003cbr\u003e \u003cstrong\u003eWeight:\u003c\/strong\u003e 74 g\u003cbr\u003e \u003cstrong\u003eColour:\u003c\/strong\u003e Black\u003c\/p\u003e","brand":"Ritchey","offers":[{"title":"ZS55\/28.6","offer_id":67586631336116,"sku":"RT33030817020","price":30.99,"currency_code":"GBP","in_stock":true},{"title":"ZS56\/28.6","offer_id":67586631368884,"sku":"RT33030817011","price":30.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0669\/2539\/6148\/files\/RT33030817011_68283.jpg?v=1791755766","url":"https:\/\/www.99bikes.co.uk\/products\/ritchey-comp-cartridge-logic-e-semi-integrated-upper-zs-headset-rt33030817020","provider":"99 Bikes UK","version":"1.0","type":"link"}