{"product_id":"gates-carbon-drive-ct1139smn-belt-drive-tools-bdtl0003","title":"Gates Carbon Drive CDX Rear Cog 39T, 9-Spline Aluminum Center Track Gear for Belt Drive Bicycle Drivetrains","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eBoost your bicycle's drivetrain performance with the Gates Carbon Drive Belt Drive CDX Rear Cog, 9-Spline, 39T - engineered for durability, smooth operation, and maintenance-free riding. Crafted from premium materials and featuring advanced engineering, this rear cog is designed for enthusiasts and competitive cyclists seeking reliable power transfer and a sleek aesthetic.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eMaterials \u0026amp; Construction:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eConstructed from hardened steel with precision CNC-machined 9-spline compatibility, the Gates Carbon Drive CDX Rear Cog offers exceptional strength and durability. Its corrosion-resistant finish ensures long-lasting performance even in challenging riding conditions, making it perfect for urban commuting, mountain biking, and touring.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003ePerformance \u0026amp; Engineering:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eDesigned to seamlessly integrate with Gates' innovative Carbon Drive belt system, this 39-tooth rear cog provides optimized gear ratios for efficient pedaling and torque transfer. The 9-spline interface ensures a secure, slip-free connection to the hub, reducing wear and enhancing drivetrain longevity. Whether you're tackling steep climbs or maintaining high-speed cruising, this cog maintains consistent performance thanks to precise engineering and high-quality materials.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eComponents \u0026amp; Technology:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003eThe model number CT1139SMN signifies compatibility with Gates' advanced belt drive components, including the CDX belt and hubs equipped with 9-spline engagement. The cog's design reduces drivetrain noise and vibration, delivering a quieter, more comfortable ride. Additionally, the cog is compatible with a wide range of bikes that utilize 6-bolt hub systems.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003eStyle \u0026amp; Use Case:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003eWith a sleek, minimalist design, the Gates Carbon Drive CDX Rear Cog complements both modern and classic bike aesthetics. Ideal for road bikes, commuter bikes, mountain bikes, and touring bikes, it's perfect for riders looking to upgrade to a maintenance-free, eco-friendly drivetrain solution. The gear size (39 teeth) strikes a balance between efficiency and torque, making it suitable for diverse terrains and riding styles.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eInnovative \u0026amp; Differentiating Features:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003e- Compatible with Gates Carbon Drive belt systems for smooth, silent operation\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- Proven durability with hardened steel construction\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Easy installation via 9-spline interface, available in a 6-bolt hub configuration\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- Supports drivetrain calculations and tension analysis with the Gates Carbon Drive app (visit [gatescarbondrive.com](http:\/\/www.gatescarbondrive.com\/) or download the app for detailed setup guidance)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003eUpgrade your bike's drivetrain with the Gates Carbon Drive Belt Drive CDX Rear Cog, 9-Spline, 39T - the ultimate choice for reliability, efficiency, and sleek performance. Enhance your cycling experience today with this high-quality, precision-engineered component designed for serious cyclists who demand the best.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003eKeywords: Gates Carbon Drive, Belt Drive Cog, Rear Cog, 9-Spline, 39T, Bicycle Drivetrain, Maintenance-Free Bike Gear, Belt Drive Components, Bike Upgrade, Eco-Friendly Cycling Accessories\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003ePremium Carbon Fiber Reinforced Material for exceptional strength and durability, ensuring long-lasting performance in demanding cycling conditions.\u003c\/li\u003e\n\u003cli\u003eEngineered with Gates' advanced BeltDrive technology, offering smooth, quiet operation and minimal maintenance compared to traditional chain drives.\u003c\/li\u003e\n\u003cli\u003eFeaturing a 9-spline, 6-bolt hub interface with a 39-tooth gear for precise power transfer and compatibility with a wide range of belt drive systems.\u003c\/li\u003e\n\u003cli\u003eDesigned for versatility and style, perfect for urban commuting, leisure riding, or upgrading your bike's drivetrain for improved efficiency and a sleek look.\u003c\/li\u003e\n\u003cli\u003eInnovative rear cog with optimized tooth profile for enhanced grip, reduced belt wear, and easy installation, supported by Gates' drivetrain calculator and tension analysis tools.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Gates Carbon Drive","offers":[{"title":"Default Title","offer_id":42356215152707,"sku":"BDTL0003","price":157.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/BD3643.jpg?v=1773447141","url":"https:\/\/365cycles.com\/products\/gates-carbon-drive-ct1139smn-belt-drive-tools-bdtl0003","provider":"365 Cycles","version":"1.0","type":"link"}