{"product_id":"grade-5-titanium-crank-bolt-cap-kit-for-srm-pm9-power-meter-cranks","title":"Grade 5 Titanium Crank Bolt \u0026 Cap Kit for SRM PM9 Power Meter Cranks","description":"\u003ch1\u003eProduct Description\u003c\/h1\u003e\n\u003ch2\u003eGrade 5 Titanium Crank Bolt \u0026amp; Cap Upgrade for SRM PM9 Power Meter Cranks\u003c\/h2\u003e\n\u003cp\u003eDesigned specifically for \u003cstrong\u003eSRM PM9 power meter crank systems\u003c\/strong\u003e, the S-PARTS titanium crank bolt and cap kit provides a lightweight, high-strength replacement solution for the original crank fastening components.\u003c\/p\u003e\n\u003cp\u003eManufactured from \u003cstrong\u003eGrade 5 Titanium (Ti-6Al-4V)\u003c\/strong\u003e, this kit delivers an exceptional strength-to-weight ratio, combining high mechanical performance with significant weight reduction compared with traditional steel hardware.\u003c\/p\u003e\n\u003cp\u003eEvery component is precision CNC-machined to ensure accurate thread engagement, consistent installation torque, and reliable performance under demanding cycling conditions.\u003c\/p\u003e\n\u003ch1\u003eAsymmetric Drive Side \u0026amp; Non-Drive Side Engineering Design\u003c\/h1\u003e\n\u003cp\u003eUnlike standard crank hardware with unnecessary material on both sides, S-PARTS optimized the structure according to the different mechanical requirements of the SRM PM9 system.\u003c\/p\u003e\n\u003ch2\u003eDrive Side (Right Side \/ Chainring Side)\u003c\/h2\u003e\n\u003cp\u003eThe drive side is engineered with a reinforced structure to handle higher tightening loads and repeated service cycles.\u003c\/p\u003e\n\u003cp\u003eAccording to SRM crank specifications, the drive-side crank cap requires a tightening torque of \u003cstrong\u003e40Nm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA stronger, more conservative design ensures excellent durability and reliable clamping performance during high-power cycling.\u003c\/p\u003e\n\u003ch2\u003eNon-Drive Side (Left Side)\u003c\/h2\u003e\n\u003cp\u003eThe non-drive side is optimized specifically for weight reduction.\u003c\/p\u003e\n\u003cp\u003eBecause the non-drive side requires only \u003cstrong\u003e5Nm tightening torque\u003c\/strong\u003e, S-PARTS removed unnecessary material through internal CNC hollowing and structural optimization around the inner ring and threaded area.\u003c\/p\u003e\n\u003cp\u003eThis design reduces weight while maintaining the required strength and functional reliability.\u003c\/p\u003e\n\u003ch1\u003eComplete 8-Piece Kit Includes\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e2 × Self-Extracting Crank Inserts (Threaded)\u003c\/li\u003e\n\u003cli\u003e2 × Self-Extracting Crank Inserts (Non-Threaded)\u003c\/li\u003e\n\u003cli\u003e2 × Crank Locking Bolts\u003c\/li\u003e\n\u003cli\u003e1 × Drive-Side Crank Cap (Right Side)\u003c\/li\u003e\n\u003cli\u003e1 × Non-Drive-Side Crank Cap (Left Side)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTotal: 8 pieces\/set\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWeight:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApprox. 31.9g per set\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003ePremium Grade 5 Titanium Construction\u003c\/h2\u003e\n\u003cp\u003eMaterial:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGrade 5 Titanium (Ti-6Al-4V)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAlso known as:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTi-6Al-4V Titanium Alloy\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh strength-to-weight ratio\u003c\/li\u003e\n\u003cli\u003eExcellent corrosion resistance\u003c\/li\u003e\n\u003cli\u003eLightweight performance upgrade\u003c\/li\u003e\n\u003cli\u003eSuitable for premium cycling components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAverage tensile strength:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOver 1050 MPa\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis provides mechanical performance comparable to many high-strength steel fasteners while achieving approximately \u003cstrong\u003e50% weight reduction\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch1\u003ePrecision CNC Manufacturing\u003c\/h1\u003e\n\u003cp\u003eEach component is produced through:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMulti-axis precision CNC machining\u003c\/li\u003e\n\u003cli\u003eTight dimensional tolerance control\u003c\/li\u003e\n\u003cli\u003eOptimized thread machining process\u003c\/li\u003e\n\u003cli\u003eCustom forged titanium head forming\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePrecision manufacturing ensures smooth installation, accurate torque application, and long-term reliability.\u003c\/p\u003e\n\u003ch1\u003ePremium Surface Finishes\u003c\/h1\u003e\n\u003cp\u003eAvailable colors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGold\u003c\/li\u003e\n\u003cli\u003eBlack\u003c\/li\u003e\n\u003cli\u003eBlue\u003c\/li\u003e\n\u003cli\u003eRainbow\u003c\/li\u003e\n\u003cli\u003eTitanium\u003c\/li\u003e\n\u003cli\u003eGreen\u003c\/li\u003e\n\u003cli\u003ePurple\u003c\/li\u003e\n\u003cli\u003eCandy\u003c\/li\u003e\n\u003cli\u003eIndigo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePVD Vacuum Coating\u003c\/h2\u003e\n\u003cp\u003eGold \/ Black \/ Blue \/ Rainbow\u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDense protective surface layer\u003c\/li\u003e\n\u003cli\u003eIncreased surface hardness\u003c\/li\u003e\n\u003cli\u003eImproved wear resistance\u003c\/li\u003e\n\u003cli\u003eLong-lasting metallic appearance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTitanium Anodized Finish\u003c\/h2\u003e\n\u003cp\u003eGreen \/ Purple \/ Candy \/ Indigo\u003c\/p\u003e\n\u003cp\u003eUses controlled oxidation to create different colors through titanium oxide layer thickness and light reflection.\u003c\/p\u003e\n\u003cp\u003eFeatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDye-free coloration\u003c\/li\u003e\n\u003cli\u003eEnhanced corrosion resistance\u003c\/li\u003e\n\u003cli\u003eUnique titanium finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eTorque Specifications\u003c\/h1\u003e\n\u003cp\u003eDesigned for SRM PM9 crank requirements:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDrive Side Crank Cap (Right): 40Nm\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNon-Drive Side Crank Cap (Left): 5Nm\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRecommended installation tools:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10mm Hex Key\u003c\/li\u003e\n\u003cli\u003eT30 Torx Wrench\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eKey Features\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for SRM PM9 power meter crank systems\u003c\/li\u003e\n\u003cli\u003eGrade 5 Titanium (Ti-6Al-4V) construction\u003c\/li\u003e\n\u003cli\u003eLightweight 31.9g complete kit\u003c\/li\u003e\n\u003cli\u003eCNC precision-machined components\u003c\/li\u003e\n\u003cli\u003eOptimized drive-side \/ non-drive-side structure\u003c\/li\u003e\n\u003cli\u003eHigh corrosion resistance\u003c\/li\u003e\n\u003cli\u003ePremium PVD and anodized finishes\u003c\/li\u003e\n\u003cli\u003eReliable torque retention for high-performance 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