{"product_id":"shimano-tiagra-cs-rs400-11-speed-road-bike-cassette-with-hyperglide-sprockets","title":"Shimano Tiagra CS-RS400 11-Speed Road Bike Cassette with Hyperglide Sprockets","description":"\u003cp\u003eThe Shimano Tiagra CS-RS400 11-speed cassette is designed to deliver smooth, reliable shifting for road cyclists seeking performance and durability. Built exclusively for Tiagra R4000 11-speed components, this cassette features Hyperglide sprockets with a computer-optimized tooth profile and contoured shift gates, ensuring crisp shifts even under heavy load. Its low 36T sprocket makes climbing steep hills more manageable, while cutaway sprockets reduce weight without sacrificing strength.\u003c\/p\u003e\n\n\u003cp\u003eWith a nickel-plated finish, this cassette resists corrosion and maintains its sleek appearance over time. The corrosion-resistant steel lockring adds extra durability, making it a lasting part of your transmission system. Compatible with 11-speed chains, it’s an essential upgrade for riders who prioritize smooth gear transitions and reliable performance.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEnsuring smooth and precise shifting under load\u003c\/li\u003e\n  \u003cli\u003eImproving climbing ability with a low 36T sprocket\u003c\/li\u003e\n  \u003cli\u003eReducing weight while maintaining rigidity\u003c\/li\u003e\n  \u003cli\u003eResisting corrosion for long-lasting durability\u003c\/li\u003e\n  \u003cli\u003eCompatibility with Tiagra R4000 11-speed systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUse with non-Tiagra R4000 11-speed components\u003c\/li\u003e\n  \u003cli\u003eCompatibility with chains other than 11-speed\u003c\/li\u003e\n  \u003cli\u003eOff-road or mountain biking applications\u003c\/li\u003e\n  \u003cli\u003eCasual or single-speed setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this cassette compatible with other Shimano groupsets?\u003c\/strong\u003e\u003cbr\u003eThis cassette is specifically designed for Tiagra R4000 11-speed components and may not shift optimally with other groupsets.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this cassette with any 11-speed chain?\u003c\/strong\u003e\u003cbr\u003eYes, it is compatible with all standard 11-speed chains designed for road bikes.\u003c\/p\u003e","brand":"Shimano Tiagra","offers":[{"title":"Silver \/ 11 - 36 teeth","offer_id":46690136490159,"sku":"CSRS40011136","price":64.12,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/csrs40011136.jpg?v=1773923206","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/shimano-tiagra-cs-rs400-11-speed-road-bike-cassette-with-hyperglide-sprockets","provider":"Swinnerton Cycles","version":"1.0","type":"link"}