{"product_id":"s-parts-titanium-sl-series-centre-lock-rotor-external","title":"S-Parts Titanium SL Series Centre Lockring - External","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-8 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"fbskMG_root markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eS-Parts SL Series Titanium Disc Rotor Lockring (EXTERNAL)\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eS-Parts SL Series Titanium Disc Rotor Lockring\u003c\/strong\u003e is the next evolution of S-Parts' lightweight centre-lock hardware, combining an extensively machined profile with \u003cstrong\u003eTC4 Grade 5 titanium\u003c\/strong\u003e construction and an exceptionally low weight of approximately \u003cstrong\u003e6.1g\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eDesigned for riders who care about weight, performance and the finer details of a high-end build, the SL Series removes unnecessary material from the lockring to reduce weight while creating a distinctive, technical appearance.\u003c\/p\u003e\n\u003cp\u003eManufactured from \u003cstrong\u003eTC4 (Grade 5) titanium\u003c\/strong\u003e, it delivers an exceptional strength-to-weight ratio, excellent fatigue resistance and outstanding corrosion resistance — making it a functional upgrade as well as a premium finishing component.\u003c\/p\u003e\n\u003cp\u003eAt just \u003cstrong\u003e~6.1g per lockring\u003c\/strong\u003e, the SL Series takes an already lightweight component and pushes it even further.\u003c\/p\u003e\n\u003cp\u003eAlongside the standard S-Parts colour range, the SL Series is also available in three premium \u003cstrong\u003eArtist Series finishes: Hawaii, Nebula and Contour\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eAvailable Colours\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStandard Series\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGold\u003c\/li\u003e\n\u003cli\u003eRainbow\u003c\/li\u003e\n\u003cli\u003eTitanium (Natural)\u003c\/li\u003e\n\u003cli\u003eBlack\u003c\/li\u003e\n\u003cli\u003eBlue\u003c\/li\u003e\n\u003cli\u003eCandy\u003c\/li\u003e\n\u003cli\u003eGreen\u003c\/li\u003e\n\u003cli\u003ePurple\u003c\/li\u003e\n\u003cli\u003eIndigo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eArtist Series – Premium Finishes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHawaii\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNebula\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eContour\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Artist Series introduces more intricate multi-tone finishes for riders looking for something beyond a conventional titanium colourway — ideal for custom builds where every finishing detail matters.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCNC-machined \u003cstrong\u003eTC4 \/ Grade 5 titanium\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSL Series extensively machined lightweight profile\u003c\/li\u003e\n\u003cli\u003eUltra-lightweight: \u003cstrong\u003e~6.1g per lockring\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCentre-lock compatible\u003c\/li\u003e\n\u003cli\u003eHigh corrosion resistance\u003c\/li\u003e\n\u003cli\u003ePrecision external spline interface\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e44mm external diameter\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eNine standard S-Parts colour options\u003c\/li\u003e\n\u003cli\u003eThree premium \u003cstrong\u003eArtist Series\u003c\/strong\u003e finishes\u003c\/li\u003e\n\u003cli\u003eCompatible with \u003cstrong\u003ePark Tool BBT-9\u003c\/strong\u003e or equivalent\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e M30 × 7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 44mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 30mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e TC4 Grade 5 Titanium (Ti-6Al-4V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~6.1g per lockring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e External spline centre-lock rotor lockring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Required:\u003c\/strong\u003e Park Tool BBT-9 or equivalent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Colour dependent\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for compatible centre-lock disc rotor systems\u003c\/li\u003e\n\u003cli\u003eRecommended tool: \u003cstrong\u003ePark Tool BBT-9 or equivalent\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCheck hub and axle clearance before installation\u003c\/li\u003e\n\u003cli\u003eInstall according to the hub\/rotor manufacturer's specified torque values\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch1\u003eWhy Choose S-Parts Titanium Bolts \u0026amp; Screws?\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eSmall upgrade. Massive difference.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eS-Parts are one of the most respected names in \u003cstrong\u003etitanium bicycle bolts and screws\u003c\/strong\u003e, producing lightweight bike hardware designed for riders who care about performance and finishing detail. Since 2010, they’ve specialised in precision fixings for \u003cstrong\u003eroad, gravel, mountain and performance builds\u003c\/strong\u003e — helping riders reduce weight, prevent corrosion, and finish a bike properly.\u003c\/p\u003e\n\u003cp\u003eWhether you’re chasing grams or building a clean custom colourway, S-Parts is one of the easiest ways to upgrade the details that most bikes leave behind.\u003c\/p\u003e\n\u003cp\u003eWith \u003cstrong\u003e1000+ bolt and screw options\u003c\/strong\u003e, S-Parts covers everything from cockpit hardware and bottle cages to drivetrain, brake and suspension fixings.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy Titanium?\u003c\/h2\u003e\n\u003cp\u003eStock hardware works — until it doesn’t.\u003c\/p\u003e\n\u003cp\u003eTitanium is trusted across cycling because it offers an elite balance of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003elow weight\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ehigh strength\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ecorrosion resistance\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003elong-term durability\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eS-Parts components are manufactured from \u003cstrong\u003eTC4 Grade 5 titanium (Ti-6Al-4V)\u003c\/strong\u003e — an aerospace-grade alloy known for excellent fatigue resistance and strength-to-weight performance.\u003c\/p\u003e\n\u003cp\u003eMany S-Parts titanium bolts and screws offer strength comparable to high tensile steel hardware, while weighing significantly less and staying corrosion-free year-round.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eS-Parts Bolt \u0026amp; Screw Colour Options\u003c\/h2\u003e\n\u003cp\u003eS-Parts titanium hardware is available in \u003cstrong\u003e9 standout standard colourways\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBlue\u003c\/li\u003e\n\u003cli\u003eBlack\u003c\/li\u003e\n\u003cli\u003eCandy\u003c\/li\u003e\n\u003cli\u003eGold\u003c\/li\u003e\n\u003cli\u003eGreen\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndigo\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePurple\u003c\/li\u003e\n\u003cli\u003eRainbow\u003c\/li\u003e\n\u003cli\u003eTitanium\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSelected S-Parts SL Series components are also available in premium \u003cstrong\u003eArtist Series finishes\u003c\/strong\u003e, including \u003cstrong\u003eHawaii, Nebula and Contour\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003ePerfect for matching frames, finishing kits, accent builds and completely individual custom upgrades.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eHow Are S-Parts Bolts \u0026amp; Screws Coloured?\u003c\/h2\u003e\n\u003cp\u003eS-Parts uses specialist finishing processes to achieve its distinctive range of titanium colourways.\u003c\/p\u003e\n\u003ch3\u003eVacuum Nitriding\u003c\/h3\u003e\n\u003cp\u003eUsed for:\u003cbr\u003e\u003cstrong\u003eBlack, Blue, Gold, Rainbow\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA hard-wearing surface treatment designed for durability and long-term appearance.\u003c\/p\u003e\n\u003ch3\u003eAnodising\u003c\/h3\u003e\n\u003cp\u003eUsed for:\u003cbr\u003e\u003cstrong\u003eCandy, Green, Indigo, Purple\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAn electrochemical process that creates vivid colours while maintaining titanium’s natural corrosion resistance.\u003c\/p\u003e\n\u003ch3\u003eArtist Series\u003c\/h3\u003e\n\u003cp\u003eAvailable on selected SL Series components in:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHawaii • Nebula • Contour\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese premium finishes take S-Parts' custom hardware a step further, creating intricate multi-tone patterns for builds where the smallest details are part of the overall design.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eMeasuring Your Bolts \u0026amp; Screws (Important)\u003c\/h2\u003e\n\u003cp\u003eBolt sizing can be confusing — especially when brands measure hardware differently.\u003c\/p\u003e\n\u003cp\u003eFor S-Parts products, \u003cstrong\u003ebolt and screw length refers to the shaft length only\u003c\/strong\u003e:\u003cbr\u003e✅ measured from \u003cstrong\u003eunder the bolt head\u003c\/strong\u003e to the \u003cstrong\u003eend of the thread\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eS-Parts thread sizes range from \u003cstrong\u003eM3 through to M10\u003c\/strong\u003e, covering the most common bicycle applications.\u003c\/p\u003e\n\u003cp\u003eIf you’re unsure what size you need, contact us — we’ll help you match the correct part.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eInstallation Note\u003c\/h3\u003e\n\u003cp\u003eAlways follow your component manufacturer's official installation instructions and torque settings. If in doubt, use a torque wrench and reach out before fitting.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cem\u003eWeights may vary by ±2% due to manufacturing tolerances.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003ePopular S-Parts upgrades:\u003c\/strong\u003e \u003cem\u003eTitanium stem bolts\u003c\/em\u003e • \u003cem\u003eTitanium bottle cage bolts\u003c\/em\u003e • \u003cem\u003eTitanium chainring bolts\u003c\/em\u003e • \u003cem\u003eTitanium brake caliper bolts\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden has-[\u0026gt;_:empty]:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1\"\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"S-Parts","offers":[{"title":"Gold","offer_id":58390431301976,"sku":"31520801","price":34.99,"currency_code":"GBP","in_stock":true},{"title":"Rainbow","offer_id":58390431334744,"sku":"31520802","price":34.99,"currency_code":"GBP","in_stock":true},{"title":"Titanium","offer_id":58390431367512,"sku":"31520803","price":34.99,"currency_code":"GBP","in_stock":true},{"title":"Black","offer_id":58390431400280,"sku":"31520804","price":34.99,"currency_code":"GBP","in_stock":false},{"title":"Blue","offer_id":58390431433048,"sku":"31520805","price":34.99,"currency_code":"GBP","in_stock":false},{"title":"Green","offer_id":58390431465816,"sku":"31520806","price":34.99,"currency_code":"GBP","in_stock":false},{"title":"Purple","offer_id":58390431498584,"sku":"31520807","price":34.99,"currency_code":"GBP","in_stock":false},{"title":"Candy","offer_id":58390431531352,"sku":"31520809","price":34.99,"currency_code":"GBP","in_stock":false},{"title":"Indigo","offer_id":58390431564120,"sku":"31520810","price":34.99,"currency_code":"GBP","in_stock":true},{"title":"Hawaii","offer_id":58390431596888,"sku":"31520836","price":37.99,"currency_code":"GBP","in_stock":true},{"title":"Nebula","offer_id":58390431629656,"sku":"31520837","price":37.99,"currency_code":"GBP","in_stock":true},{"title":"Contour","offer_id":58390431662424,"sku":"31520850","price":37.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/7611\/1704\/files\/3_31c7a144-bf0d-4f98-8e8a-b64a6852ae5f.jpg?v=1788473399","url":"https:\/\/www.offthefront.cc\/products\/s-parts-titanium-sl-series-centre-lock-rotor-external","provider":"Off The Front","version":"1.0","type":"link"}