{"product_id":"11t-13t-al7075-cnc-bicycle-rear-derailleur-pulley-ceramic-bearing","title":"11T\/13T AL7075 CNC Bike Rear Derailleur Pulley – Ceramic Bearing","description":"\u003ch2\u003e11T\/13T AL7075 CNC Bicycle Rear Derailleur Pulley with Ceramic Bearing\u003c\/h2\u003e\n\u003cp\u003eUpgrade your mountain bike's drivetrain with this precision-engineered \u003cstrong\u003eRear Derailleur Bearing Pulley\u003c\/strong\u003e. CNC-machined from aerospace-grade \u003cstrong\u003eAL7075 aluminum alloy\u003c\/strong\u003e and fitted with a smooth \u003cstrong\u003eceramic bearing\u003c\/strong\u003e, this pulley delivers ultra-quiet operation, reduced friction, and a noticeably more efficient pedaling experience — ride after ride.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in both \u003cstrong\u003e11T and 13T\u003c\/strong\u003e configurations, this colorful anodized pulley is designed for wide compatibility across mountain bike rear derailleurs, making it an easy and stylish upgrade for any rider looking to fine-tune their setup.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e AL7075 Aluminum Alloy body + Ceramic Bearing for durability and smooth rotation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptions:\u003c\/strong\u003e 11T or 13T tooth count — choose the right fit for your derailleur\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCNC Machined:\u003c\/strong\u003e Precision CNC manufacturing for tight tolerances and consistent performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Quiet Operation:\u003c\/strong\u003e Ceramic bearing minimizes noise and rolling resistance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Compatibility:\u003c\/strong\u003e Designed to fit a wide range of mountain bike rear derailleurs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColorful Anodized Finish:\u003c\/strong\u003e Vibrant color options add a stylish touch to your build\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight Design:\u003c\/strong\u003e AL7075 alloy keeps weight down without sacrificing strength\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e 1 × Bicycle Rear Derailleur Bearing Pulley\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAluminum Alloy (AL7075) + Ceramic Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStyle \/ Tooth Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11T \/ 13T\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eColorful (Anodized)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMountain Bikes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Manual measurements may result in a ±2–3% size variance. Please review the size specifications carefully before purchasing. Slight color differences between product images and the actual item may occur due to lighting and monitor settings.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eComplete Your Build\u003c\/h3\u003e\n\u003cp\u003eLooking for more quality components and accessories? Check out these related items in our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-cord-end-caps-with-loop-jewelry-making-6pcs\"\u003eStainless Steel Cord End Caps with Loop – Jewelry Findings\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-flat-disc-spacer-beads-gold-silver-jewelry-making\"\u003eStainless Steel Flat Disc Spacer Beads Gold Silver – 20-50pcs\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/metal-q-ring-spring-clasps-gold-silver-plated-jewelry-connectors\"\u003eMetal Q Ring Spring Clasps Gold Silver Plated – Jewelry Connectors\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/medlineplus.gov\/exerciseandphysicalfitness.html\" target=\"_blank\" rel=\"noopener\"\u003eMedlinePlus on exercise and physical fitness\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What tooth count options are available for this rear derailleur pulley?\u003c\/h4\u003e\n\u003cp\u003eA: This CNC AL7075 bicycle rear derailleur pulley is available in both \u003cstrong\u003e11T (11-tooth)\u003c\/strong\u003e and \u003cstrong\u003e13T (13-tooth)\u003c\/strong\u003e configurations. Please select the correct tooth count compatible with your specific rear derailleur before purchasing.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What type of bearing does this derailleur pulley use, and what are the benefits?\u003c\/h4\u003e\n\u003cp\u003eA: This pulley features a \u003cstrong\u003eceramic bearing\u003c\/strong\u003e, which offers lower rolling resistance, quieter operation, and excellent durability compared to standard steel bearings. The result is a smoother, more efficient drivetrain performance for mountain biking.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this rear derailleur pulley compatible with my mountain bike?\u003c\/h4\u003e\n\u003cp\u003eA: This pulley is designed with \u003cstrong\u003ehigh compatibility\u003c\/strong\u003e across a wide range of mountain bike rear derailleurs. We recommend checking the tooth count (11T or 13T) and the inner bore diameter against your current derailleur specifications to ensure a proper fit before ordering.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How does the AL7075 aluminum alloy benefit this pulley?\u003c\/h4\u003e\n\u003cp\u003eA: AL7075 is an aerospace-grade aluminum alloy known for its exceptional strength-to-weight ratio. Using it in this derailleur pulley means you get a component that is \u003cstrong\u003elightweight yet highly durable\u003c\/strong\u003e, capable of withstanding the demands of regular mountain biking without adding unnecessary weight to your drivetrain.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What tooth count options are available for this rear derailleur pulley?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This CNC AL7075 bicycle rear derailleur pulley is available in both 11T (11-tooth) and 13T (13-tooth) configurations. Please select the correct tooth count compatible with your specific rear derailleur before purchasing.\"}}, {\"@type\": \"Question\", \"name\": \"What type of bearing does this derailleur pulley use, and what are the benefits?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This pulley features a ceramic bearing, which offers lower rolling resistance, quieter operation, and excellent durability compared to standard steel bearings. The result is a smoother, more efficient drivetrain performance for mountain biking.\"}}, {\"@type\": \"Question\", \"name\": \"Is this rear derailleur pulley compatible with my mountain bike?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This pulley is designed with high compatibility across a wide range of mountain bike rear derailleurs. 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