{"product_id":"shimano-12-25-11-speed-cassette-fw0507-bicycle-cassettes","title":"Shimano Ultegra R8000 11-Speed 12-25t Cassette - Durable E-MTB-Ready Silver","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eEnhance your road cycling or e-bike performance with the Shimano Ultegra CS-R8000 11-Speed Cassette - the perfect combination of durability, precision, and lightweight engineering. Crafted with premium materials and innovative technology, this 12-25t silver cassette offers seamless gear shifts and superior durability for both competitive racing and everyday riding.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eMaterials \u0026amp; Engineering:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eConstructed from high-quality steel with an anodized silver finish, the Shimano Ultegra CS-R8000 cassette ensures exceptional durability and corrosion resistance. Its precision-machined cogs deliver smooth, reliable shifting under high load, making it ideal for demanding road and e-bike applications.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003ePerformance \u0026amp; Components:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eDesigned specifically for 11-speed drivetrains, this cassette features a versatile 12-25t gear range, providing optimal cadence and gear ratios for climbing, sprinting, and steady pacing. The Shimano HG 11\/12-Speed Road body ensures perfect compatibility with Shimano's latest drivetrain systems. Notably, the CS-R8000 series meets the rigorous durability standards required for E-MTB applications, making it a resilient choice for electric bike enthusiasts seeking reliability.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eTechnology \u0026amp; Innovation:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003eThe cassette employs Shimano's Hyperglide (HG) technology, ensuring crisp, quick gear changes and efficient power transfer. Its lightweight design (weighing only 243 grams) contributes to overall bike performance without compromising durability. The precise manufacturing process reduces drivetrain friction, enhancing overall efficiency and rider experience.\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 its sleek silver finish, the Shimano Ultegra CS-R8000 cassette offers a modern, professional aesthetic perfect for high-performance road bikes and e-bikes. Its broad gear range supports a variety of riding styles-from fast group rides and solo climbs to long-distance endurance cycling.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eKey Features:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003e- Compatible with Shimano HG 11\/12-Speed Road drivetrains\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- 11-speed gearing with a 12-25t range for versatile riding conditions\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Durable construction suited for both road and E-MTB applications\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- Designed for lightweight performance and reliable shifting\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e- Weighs only 243 grams for optimal weight efficiency\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003e- Completed with a sleek silver finish for a professional look\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003eUpgrade your bike's drivetrain with the Shimano Ultegra CS-R8000 Cassette-engineered for smooth shifts, lasting performance, and versatile use across road and electric bikes. Whether you're racing, commuting, or tackling mountain climbs, this cassette provides the gear range and durability you need to push your limits.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eOptimized for 11-speed performance, the Shimano Ultegra CS-R8000 cassette features precision-engineered 12-25t gearing for smooth, reliable shifting across varied terrains. \u003c\/li\u003e\n\u003cli\u003eConstructed with durable materials, this cassette delivers exceptional longevity and withstands rigorous riding conditions, including E-MTB and e-bike applications. \u003c\/li\u003e\n\u003cli\u003eUtilizing Shimano's advanced HG 11\/12-speed road body technology, the CS-R8000 ensures seamless compatibility with Ultegra drivetrain components for enhanced power transfer and efficiency. \u003c\/li\u003e\n\u003cli\u003eDesigned with a sleek silver finish, this cassette pairs stylishly with both road and e-bike setups, making it perfect for racers, enthusiasts, and daily commuters alike. \u003c\/li\u003e\n\u003cli\u003eInnovative engineering incorporates lightweight design at just 243 grams, reducing rider fatigue while maintaining high-performance durability for competitive and recreational cycling.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":42206984044611,"sku":"FW0507","price":112.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/FW0503_d0e019a0-a2f2-4c32-93d9-a8a54ace81f4.jpg?v=1773864647","url":"https:\/\/tecopecosafe.com\/products\/shimano-12-25-11-speed-cassette-fw0507-bicycle-cassettes","provider":"365 Cycles","version":"1.0","type":"link"}