{"product_id":"ceramicspeed-ospw-rs-alpha-shimano-105-di2-7150-argent-special-edition","title":"CeramicSpeed OSPW RS Alpha for Shimano 105 Di2 (RD-7150) - Argent Special Edition","description":"\u003ch2 data-path-to-node=\"11,0\"\u003eSovereign Road Velocity in Brilliant Silver: Limited-Edition Argent Metallic Aesthetics Meet Active Debris Shroud Protection and Elite Hand-Built Ceramic Bearings\u003c\/h2\u003e\n\u003cp data-path-to-node=\"11,1\"\u003eEliminate parasitic drivetrain friction at the rear derailleur, sharpen your electronic gear changes across your 12-speed cluster, and make an undeniable style statement. The \u003cb data-path-to-node=\"11,1\" data-index-in-node=\"175\"\u003eCeramicSpeed OSPW RS Alpha Shimano 105 Di2 (7150) Argent Special Edition\u003c\/b\u003e represents the ultimate marriage of elite mechanical efficiency and rare boutique artistry—sculpted explicitly to bring professional-tier marginal gains to Shimano's 105 Di2 system. Sourcing limited-edition performance hardware independently from international stores often exposes you to long shipping delays, single-item courier minimums, or unexpected port clearance hold-ups. Epic Sports handles all international logistics natively, bringing this rare silver treatment straight to Kenya. Hand-built in Denmark, this system wraps world-record bearing efficiency in a striking metallic shell that extracts every possible watt from your pedal stroke.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"11,3\"\u003eWhy the OSPW RS Alpha Argent Edition Governs the Racing Grid:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"11,4,0,0\"\u003e\n\u003cb data-path-to-node=\"11,4,0,0\" data-index-in-node=\"0\"\u003eExclusive Limited-Edition Argent Finish:\u003c\/b\u003e Rare boutique aesthetics. Outfitted with a brilliant silver metallic finish that breaks away from standard black components, providing an exquisite custom look for your superbike build.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,4,1,0\"\u003e\n\u003cb data-path-to-node=\"11,4,1,0\" data-index-in-node=\"0\"\u003eRevolutionary Active Debris Shroud (ADS):\u003c\/b\u003e Permanent internal barrier. Features a specialized moving dust shield design that physically guards the bearing seal faces, actively deflecting fine road dust, tarmac grit, and moisture water streams away from the spinning internals.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,4,2,0\"\u003e\n\u003cb data-path-to-node=\"11,4,2,0\" data-index-in-node=\"0\"\u003eHyper-Rigid Injection-Molded Composite Cage:\u003c\/b\u003e Structural shifting alignment perfection. Formulated from a custom fiber-reinforced polymer compound that delivers incredible impact resistance and zero flexing, keeping your tracking lines razor-straight under peak sprinting forces.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,4,3,0\"\u003e\n\u003cb data-path-to-node=\"11,4,3,0\" data-index-in-node=\"0\"\u003eAlpha Disc Pulley Wheel Array:\u003c\/b\u003e Structural integrity meets speed. Designed with a solid disc geometry that prevents road grime, twigs, or debris from getting caught inside the pulleys while maximizing airflow efficiency.\u003c\/li\u003e\n\u003cli data-path-to-node=\"11,4,4,0\"\u003e\n\u003cb data-path-to-node=\"11,4,4,0\" data-index-in-node=\"0\"\u003eHand-Built Ceramic Bearing Efficiency:\u003c\/b\u003e Surgical rotational smoothness. Outfitted with premium silicon nitride balls rolling on hardened steel tracks, delivering unmatched free-spinning longevity that leaves standard factory steel bearings far behind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"11,6\"\u003eTechnical Specifications \u0026amp; Product Architecture:\u003c\/h3\u003e\n\u003ctable data-path-to-node=\"11,7\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrivetrain Performance Variable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTechnical Architecture \u0026amp; Product Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,1,0,0\"\u003e\u003cb data-path-to-node=\"11,7,1,0,0\" data-index-in-node=\"0\"\u003eDerailleur Compatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,1,1,0\"\u003eShimano 105 Di2 RD-R7150 12-Speed Electronic Rear Derailleurs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,2,0,0\"\u003e\u003cb data-path-to-node=\"11,7,2,0,0\" data-index-in-node=\"0\"\u003ePulley Wheel Technology\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,2,1,0\"\u003e\u003cb data-path-to-node=\"11,7,2,1,0\" data-index-in-node=\"0\"\u003eAlpha Disc Array\u003c\/b\u003e featuring specialized structural composite teeth\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,3,0,0\"\u003e\u003cb data-path-to-node=\"11,7,3,0,0\" data-index-in-node=\"0\"\u003eAesthetic Special Finish\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,3,1,0\"\u003e\u003cb data-path-to-node=\"11,7,3,1,0\" data-index-in-node=\"0\"\u003eArgent Special Edition\u003c\/b\u003e (Premium High-Brilliance Metallic Silver)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,4,0,0\"\u003e\u003cb data-path-to-node=\"11,7,4,0,0\" data-index-in-node=\"0\"\u003eCage Structural Material\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,4,1,0\"\u003eCustom Fiber-Reinforced Injection-Molded Composite Assembly\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,5,0,0\"\u003e\u003cb data-path-to-node=\"11,7,5,0,0\" data-index-in-node=\"0\"\u003eBearing Matrix Type\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,5,1,0\"\u003eHand-Built CeramicSpeed Silicon Nitride Balls (Coated Option Available)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,6,0,0\"\u003e\u003cb data-path-to-node=\"11,7,6,0,0\" data-index-in-node=\"0\"\u003eDebris Protection Core\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,6,1,0\"\u003eIntegrated Active Debris Shroud (ADS) Dynamic Face Barrier\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,7,0,0\"\u003e\u003cb data-path-to-node=\"11,7,7,0,0\" data-index-in-node=\"0\"\u003eDrivetrain Speed Match\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,7,1,0\"\u003eOptimized exclusively for modern \u003cb data-path-to-node=\"11,7,7,1,0\" data-index-in-node=\"33\"\u003e12-Speed Shimano Chains\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,8,0,0\"\u003e\u003cb data-path-to-node=\"11,7,8,0,0\" data-index-in-node=\"0\"\u003eFulfillment Status\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,7,8,1,0\"\u003eSecurely Stocked Natively in Kenya, 100% Factory Authenticity Verified\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-path-to-node=\"11,9\"\u003eFrequently Asked Questions (FAQ) for Discerning Riders:\u003c\/h3\u003e\n\u003cp data-path-to-node=\"11,10\"\u003e\u003cb data-path-to-node=\"11,10\" data-index-in-node=\"0\"\u003eDoes installing this oversized pulley cage require a different chain length for my 105 Di2 setup?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"11,11\"\u003eYes, because the CeramicSpeed OSPW RS Alpha system utilizes much larger pulley wheels than the stock Shimano 105 derailleur cage to reduce chain articulation friction, you will typically need a slightly longer chain to accommodate the expanded wrap profile. We highly recommend pairing this mechanical upgrade with a fresh, ultra-efficient chain standard like the \u003cb data-path-to-node=\"11,11\" data-index-in-node=\"364\"\u003eCeramicSpeed UFO Factory Optimized Chain\u003c\/b\u003e to lock in maximum possible multi-watt drivetrain efficiency.\u003c\/p\u003e\n\u003cp data-path-to-node=\"11,12\"\u003e\u003cb data-path-to-node=\"11,12\" data-index-in-node=\"0\"\u003eWhat is the advantage of the Active Debris Shroud (ADS) system on Kenyan roads?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"11,13\"\u003eFine tarmac dust, coastal humidity, and abrasive dirt particles are the primary enemies of high-performance ceramic bearings, chewing through seals and creating drag over time. CeramicSpeed's breakthrough \u003cb data-path-to-node=\"11,13\" data-index-in-node=\"205\"\u003eActive Debris Shroud (ADS)\u003c\/b\u003e technology solves this by integrating a physical, moving shroud over the bearing face itself. This shroud actively deflects debris, road spray, and water from bike washes away from the inner ceramic tracks, dramatically extending your service intervals and preserving your marginal gains through all riding conditions.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"11,15\"\u003eAuthentic Local Stock – Skip Port Surcharges \u0026amp; Customs Hassles\u003c\/h3\u003e\n\u003cp data-path-to-node=\"11,16\"\u003eAvoid the extreme frustration of trying to buy small premium upgrades and rare special-edition components from international online warehouses, only to face weeks of shipping delays, exorbitant courier freight minimums, or unexpected port clearance hold-ups. Epic Sports handles all international logistics, bulk freight compliance, and customs handling natively. We provide guaranteed 100% authentic CeramicSpeed performance gear, local product support, and secure, trackable express delivery straight to your doorstep across Kenya.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"CeramicSpeed OSPW RS Alpha for Shimano 7150 - Argent Special Edition\",\n  \"image\": [\n    \"https:\/\/epicsports.cc\/products\/ceramicspeed-ospw-rs-alpha-for-shimano-7150-argent-special-edition\"\n  ],\n  \"description\": \"Premium limited-edition oversized pulley wheel system engineered by CeramicSpeed for Shimano 105 Di2 RD-R7150 rear derailleurs. 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