{"product_id":"br-rs811","title":"BR-RS811","description":"\u003ch3 class=\"list_anchor_cs_h3\"\u003eSHIMANO BR-RS811｜Under-BB Mount Brake That Fits Beautifully into Aero Frames\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eAesthetics that integrate with the frame, and reliable braking power.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe SHIMANO BR-RS811 is a direct-mount rear brake caliper designed for under-BB (bottom bracket) mounting.\u003c\/p\u003e\n\u003cp\u003eSpecifically designed for under-BB mounting, often found on aero road bikes and time trial bikes, it features a low-profile design that enhances integration with the frame. It achieves both aerodynamic performance and style while providing stable braking power.\u003c\/p\u003e\n\u003cp\u003eCompatible with SHIMANO's SLR-EV technology, it offers light lever operation and high control. With an excellent balance of rigidity, weight, and braking power, it supports high performance in a wide range of situations, from racing to long rides.\u003c\/p\u003e\n\u003cp\u003eIt supports tires up to 28C, accommodating the wide tires that have become popular in recent years. This direct-mount brake brings out the performance of modern road bikes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 class=\"list_anchor_cs_h3\"\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eDirect mount brake caliper exclusively for under-BB mounting\u003c\/li\u003e\n\n\u003cli\u003eLow-profile design for improved aerodynamic performance\u003c\/li\u003e\n\n\u003cli\u003eDesign with an excellent balance of rigidity, lightness, and braking power\u003c\/li\u003e\n\n\u003cli\u003eLight lever operation and high control performance thanks to SLR-EV compatibility\u003c\/li\u003e\n\n\u003cli\u003eSupports tires up to 28C\u003c\/li\u003e\n\n\u003cli\u003eUses cartridge-type brake shoes\u003c\/li\u003e\n\n\u003cli\u003eShoe angle adjustment function\u003c\/li\u003e\n\n\u003cli\u003eSuitable for a wide range of uses, from road racing to long rides\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 class=\"list_anchor_cs_h3\"\u003eSPEC\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eBrand: SHIMANO\u003c\/li\u003e\n\n\u003cli\u003eModel: BR-RS811\u003c\/li\u003e\n\n\u003cli\u003eType: Direct Mount Brake Caliper (Under-BB Mount)\u003c\/li\u003e\n\n\u003cli\u003eCompatible Standard: SLR-EV\u003c\/li\u003e\n\n\u003cli\u003eReach: 51mm\u003c\/li\u003e\n\n\u003cli\u003eBrake Shoe: Normal type\u003c\/li\u003e\n\n\u003cli\u003eMaximum Compatible Tire Size: 28C\u003c\/li\u003e\n\n\u003cli\u003eCompatible Rim Width: 20.8-28mm\u003c\/li\u003e\n\n\u003cli\u003eFunctions: Cartridge shoe holder, tire guide bumper, quick release lever, shoe angle adjustment\u003c\/li\u003e\n\n\u003cli\u003eNotes: SM-CB90 inline cable adjuster is required for cable adjustment and quick release functions\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWhile under-BB mounting is often adopted for aero road and TT bikes, the BR-RS811 offers surprisingly strong braking power. \u003c\/p\u003e\n\u003cp\u003eIt maintains the frame's silhouette and provides a clean look from the side, a characteristic unique to direct mount brakes. With the easy-to-use brake feel characteristic of SLR-EV, speed adjustment feels smooth and controlled.\u003c\/p\u003e\n\u003cp\u003eSince it supports the increasingly popular 28C tires, it is also recommended for customizing road bikes that prioritize comfort. This model is perfect for those who want to achieve both aerodynamic performance and braking performance.\u003c\/p\u003e","brand":"SHIMANO","offers":[{"title":"In-store stock","offer_id":50119060979987,"sku":"4550170893880","price":11068.0,"currency_code":"JPY","in_stock":false},{"title":"Manufacturer取り寄せ（約10日）","offer_id":50119061012755,"sku":"OTY-4550170893880","price":11068.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/4237\/2883\/files\/3-1.jpg?v=1732506251","url":"https:\/\/store-eirin-jp.com\/en\/products\/br-rs811","provider":"京都の自転車屋 CYCLE SHOP eirin ＆ サイクルハテナ","version":"1.0","type":"link"}