{"product_id":"shimano-ultegra-fc-r8100-12-speed-chainring-chainrings-cnrg1692","title":"Shimano Ultegra FC-R8100 12-Speed Aluminum Chainring 36t, Asymmetric 110 BCD for Road Cycling, Durable Lightweight Gear Components","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eBoost Your Cycling Performance with the Shimano Ultegra FC-R8100 12-Speed Chainring - 36t, Asymmetric 110 BCD, Black, NH\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eUpgrade your road bike setup with the lightweight and durable Shimano Ultegra FC-R8100 12-Speed Chainring, crafted for precise shifting and optimal power transfer. Designed for serious cyclists and competitive riders, this high-performance component offers advanced engineering, innovative features, and sleek aesthetics to enhance your riding experience.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eMaterials \u0026amp; Construction:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003eConstructed from premium anodized aluminum, the Shimano Ultegra FC-R8100 chainring combines durability and lightweight performance. Its anodized finish resists corrosion and wear, ensuring long-lasting reliability on all your cycling adventures.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003ePerformance \u0026amp; Engineering:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eEngineered for seamless compatibility with Shimano's latest FC-R8100 and FC-8100-P 2x12-speed cranksets, this 36t inner chainring is designed for efficient chain engagement and smooth shifting. The round tooth profile optimizes chain retention and reduces noise, providing a silent, responsive ride under demanding conditions.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003eComponents \u0026amp; Technology:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003eFeaturing Shimano's innovative asymmetric 110 BCD (Bolt Circle Diameter) design, this chainring delivers precise chainring alignment and enhanced chain stability. Compatible with HG 12-speed chains, it ensures crisp, reliable gear changes for climbing, sprinting, or endurance riding. The asymmetric design also contributes to optimized power transfer and pedal efficiency.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003eStyle \u0026amp; Use Case:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eWith its sleek black finish, the Shimano Ultegra FC-R8100 chainring adds a modern, professional aesthetic to any road bike. Ideal for road racing, endurance rides, or fast-paced training sessions, this component is tailored for cyclists seeking top-tier performance and a lightweight build.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003eKey Features:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- High-quality anodized aluminum construction for durability and reduced weight\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- 36-tooth inner chainring designed for use with 52t outer chainring\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- Asymmetric 110 BCD for precise shifting and improved chain retention\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e- Compatible with Shimano HG 12-speed chains and cranksets\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003e- Optimized for road cycling, racing, and high-performance riding\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003e- Sleek black finish complements any bike setup\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-18\"\u003e\u003cp\u003eEnhance your bike's drivetrain with the Shimano Ultegra FC-R8100 12-Speed Chainring and experience seamless shifting, increased efficiency, and a lightweight build designed for competitive and recreational cyclists alike. Whether upgrading your existing setup or building a new race-ready bike, this advanced chainring is an essential component to elevate your cycling performance.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eHigh-quality aluminum construction with anodized finish ensures long-lasting durability and lightweight performance for agile climbing and sprinting. \u003c\/li\u003e\n\u003cli\u003eDesigned specifically for Shimano Ultegra R8100 series 12-speed cranksets, offering seamless compatibility and optimized shifting performance with HG 12-speed chains. \u003c\/li\u003e\n\u003cli\u003eAsymmetric 110 BCD design increases stiffness and power transfer efficiency, while the 36t inner chainring provides versatile gearing for mixed terrain riding and competitive cycling. \u003c\/li\u003e\n\u003cli\u003eSleek black finish complements modern bike aesthetics, making it suitable for both performance-focused road bikes and stylish racing setups. \u003c\/li\u003e\n\u003cli\u003eInnovative round profile with precise tooth shape enhances chain retention and reduces wear, delivering a smooth, responsive pedaling experience for serious cyclists.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":42204556492867,"sku":"CNRG1692","price":17.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/CR5038.jpg?v=1773564926","url":"https:\/\/365cycles.com\/products\/shimano-ultegra-fc-r8100-12-speed-chainring-chainrings-cnrg1692","provider":"365 Cycles","version":"1.0","type":"link"}