{"product_id":"ritchey-comp-cartridge-logic-e-semi-integrated-upper-zs-headset-zs55-28-6","title":"Ritchey Comp Cartridge Logic-E Semi Integrated Upper ZS Headset:  ZS55\/28.6","description":"Ritchey: \u003cp data-end=\"475\" data-start=\"0\"\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 data-end=\"806\" data-start=\"477\"\u003e\u003cstrong data-end=\"489\" data-start=\"477\"\u003eFeatures\u003c\/strong\u003e\u003cbr data-end=\"492\" data-start=\"489\"\u003e • Integrated cable and wire routing for clean cockpit setups\u003cbr data-end=\"555\" data-start=\"552\" data-is-only-node=\"\"\u003e • Compatible with standard stems—no proprietary parts needed\u003cbr data-end=\"618\" data-start=\"615\"\u003e • Durable sealed cartridge bearings ensure smooth performance\u003cbr data-end=\"682\" data-start=\"679\"\u003e • Low stack height for a sleek, compact front end\u003cbr data-end=\"734\" data-start=\"731\"\u003e • Designed specifically for modern e-bike and performance applications\u003c\/p\u003e\u003cp data-end=\"1104\" data-start=\"808\" data-is-only-node=\"\" data-is-last-node=\"\"\u003e\u003cstrong data-end=\"826\" data-start=\"808\"\u003eSpecifications\u003c\/strong\u003e\u003cbr data-end=\"829\" data-start=\"826\"\u003e \u003cstrong data-end=\"842\" data-start=\"829\"\u003eMaterial:\u003c\/strong\u003e Nylon and glass-fibre composite\u003cbr data-end=\"877\" data-start=\"874\"\u003e \u003cstrong data-end=\"894\" data-start=\"877\"\u003eStack Height:\u003c\/strong\u003e 22.2 mm\u003cbr data-end=\"905\" data-start=\"902\"\u003e \u003cstrong data-end=\"932\" data-start=\"905\"\u003eHeadtube Compatibility:\u003c\/strong\u003e 55\/61 mm or 56\/62 mm\u003cbr data-end=\"956\" data-start=\"953\"\u003e \u003cstrong data-end=\"974\" data-start=\"956\"\u003eSHIS Standard:\u003c\/strong\u003e ZS55\/28.6 (1.5″) – ZS56\/28.6 (1.5″)\u003cbr data-end=\"1013\" data-start=\"1010\"\u003e \u003cstrong data-end=\"1026\" data-start=\"1013\"\u003eBearings:\u003c\/strong\u003e 51.85\/40 mm (45°\/45°) sealed cartridge\u003cbr data-end=\"1068\" data-start=\"1065\"\u003e \u003cstrong data-end=\"1079\" data-start=\"1068\"\u003eWeight:\u003c\/strong\u003e 74 g\u003cbr data-end=\"1087\" data-start=\"1084\"\u003e \u003cstrong data-end=\"1098\" data-start=\"1087\"\u003eColour:\u003c\/strong\u003e Black\u003c\/p\u003e  ","brand":"Ritchey","offers":[{"title":"Default Title","offer_id":56974923596120,"sku":"RT33030817020","price":27.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/5247\/5224\/files\/RT33030817011_68283_11b97bdf-32d3-4589-841a-4254bb1f0a08.jpg?v=1774439601","url":"https:\/\/www.leadoutperformance.co.uk\/products\/ritchey-comp-cartridge-logic-e-semi-integrated-upper-zs-headset-zs55-28-6","provider":"Leadout Performance","version":"1.0","type":"link"}