{"product_id":"s-parts-titanium-centrelock-disc-rotor-lockring-internal","title":"S-Parts Titanium CentreLock Disc Rotor Lockring (Internal)","description":"\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eS-Parts Titanium Disc Rotor Lockring (INTERNAL)\u003c\/h2\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eThe S-Parts Titanium Disc Rotor Lockring (Internal) is a precision-machined upgrade for center-lock disc brake systems, aimed at riders who care about weight, longevity, and the finer details of a well-finished build.\u003c\/p\u003e\u003cp\u003eManufactured from \u003cstrong\u003eTC4 (Grade 5) titanium\u003c\/strong\u003e, it offers excellent strength-to-weight performance, outstanding corrosion resistance, and a meaningful weight saving over standard steel lockrings. At just \u003cstrong\u003e~5.5g\u003c\/strong\u003e, it’s an ultra-light option for builds where every gram — and every detail — matters.\u003c\/p\u003e\u003cp\u003eThe internal spline interface is compatible with standard cassette-style tools, delivering secure engagement while maintaining a clean, minimal appearance around the hub and rotor interface.\u003c\/p\u003e\u003cp\u003eAvailable in \u003cstrong\u003enine standard S-Parts anodised colourways\u003c\/strong\u003e, making it easy to match bolts, hubs, calipers, or your overall build aesthetic.\u003c\/p\u003e\u003ch3\u003eAvailable Colours\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eGold\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRainbow\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eTitanium (Natural)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eBlack\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eBlue\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eCandy\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eGreen\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003ePurple\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eIndigo\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eCNC-machined \u003cstrong\u003eTC4 \/ Grade 5 titanium\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eLightweight: \u003cstrong\u003e~5.5g\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eCenter-lock compatible\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eHigh corrosion resistance\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eInternal spline (cassette-tool style)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eNine anodized colour options\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eThread:\u003c\/strong\u003e M30 × 6\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eOuter Diameter:\u003c\/strong\u003e 40mm\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eInner Diameter:\u003c\/strong\u003e 30mm\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e TC4 (Grade 5 Titanium)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e ~5.5g\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Anodized (colour dependent)\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eCompatible with standard center-lock rotor systems\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRecommended tools: \u003cstrong\u003ePark Tool FR-5.2\u003c\/strong\u003e, \u003cstrong\u003eShimano TL-LR15\u003c\/strong\u003e, or equivalent\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eInstall according to manufacturer-specified torque values\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eWhy Choose S-Parts Titanium Bolts \u0026amp; Screws?\u003c\/h1\u003e\u003cp\u003e\u003cstrong\u003eSmall upgrade. Massive difference.\u003c\/strong\u003e\u003c\/p\u003e\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\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\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\u003chr\u003e\u003ch2\u003eWhy Titanium?\u003c\/h2\u003e\u003cp\u003eStock hardware works — until it doesn’t.\u003c\/p\u003e\u003cp\u003eTitanium is trusted across cycling because it offers an elite balance of:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003elow weight\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003ehigh strength\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003ecorrosion resistance\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003elong-term durability\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\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\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\u003chr\u003e\u003ch2\u003eS-Parts Bolt \u0026amp; Screw Colour Options\u003c\/h2\u003e\u003cp\u003eS-Parts titanium hardware is available in \u003cstrong\u003e9 standout colourways\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cp\u003eBlue\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eBlack\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eCandy\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eGold\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eGreen\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003e\u003cstrong\u003eIndigo\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003ePurple\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eRainbow\u003c\/p\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cp\u003eTitanium\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePerfect for matching frames, finishing kits, accent builds and custom upgrades.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eHow Are S-Parts Bolts \u0026amp; Screws Coloured?\u003c\/h2\u003e\u003cp\u003eS-Parts uses two proven finishing methods to achieve durable, high-end colourways:\u003c\/p\u003e\u003ch3\u003eVacuum Nitriding\u003c\/h3\u003e\u003cp\u003eUsed for:\u003cbr\u003e\u003cstrong\u003eBlack, Blue, Gold, Rainbow\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA hard-wearing surface treatment designed for durability and long-term appearance.\u003c\/p\u003e\u003ch3\u003eAnodising\u003c\/h3\u003e\u003cp\u003eUsed for:\u003cbr\u003e\u003cstrong\u003eCandy, Green, Indigo, Purple\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAn electrochemical process that creates vivid colours while maintaining titanium’s natural corrosion resistance.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eMeasuring Your Bolts \u0026amp; Screws (Important)\u003c\/h2\u003e\u003cp\u003eBolt sizing can be confusing — especially when brands measure hardware differently.\u003c\/p\u003e\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\u003cp\u003eS-Parts thread sizes range from \u003cstrong\u003eM3 through to M10\u003c\/strong\u003e, covering the most common bicycle applications.\u003c\/p\u003e\u003cp\u003eIf you’re unsure what size you need, contact us — we’ll help you match the correct part.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eInstallation Note\u003c\/h3\u003e\u003cp\u003eAlways follow your component manufacturer’s official installation instructions and torque settings. 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