{"product_id":"st-r8170-br-r8170-jkit","title":"ST-R8170 \/ BR-R8170 J-kit (ULTEGRA)","description":"\u003ch3 class=\"list_anchor_cs_h3\"\u003eSHIMANO ST-R8170 \/ BR-R8170 J-Kit (ULTEGRA)｜J-Kit Set for Smart Introduction of Latest Di2 and Hydraulic Disc\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eShifting and braking, to the latest ULTEGRA quality.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe \"ST-R8170 \/ BR-R8170 J-Kit\" from the SHIMANO ULTEGRA R8100 series is a set model that combines 12-speed Di2-compatible dual control levers with hydraulic disc brake calipers.\u003c\/p\u003e\n\u003cp\u003eThe ST-R8170 features an evolved ergonomic design based on feedback from professional riders. The raised upper portion of the bracket improves stability in the aero position, ensuring comfortable operation even during long rides.\u003c\/p\u003e\n\u003cp\u003eThe BR-R8170 caliper has increased pad clearance, reducing rotor rub. Furthermore, it delivers excellent braking control and modulation performance with its SERVOWAVE mechanism, enabling reliable braking at high speeds and on long descents.\u003c\/p\u003e\n\u003cp\u003eBeing a J-Kit specification, the levers, calipers, and hoses are all included as a set, making it ideal for introducing or upgrading to a Di2 hydraulic disc system.\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\u003eULTEGRA R8100 series Di2 STI lever \u0026amp; hydraulic disc brake set\u003c\/li\u003e\n\n\u003cli\u003eFeatures ST-R8170 Dual Control Levers\u003c\/li\u003e\n\n\u003cli\u003eFeatures BR-R8170 Hydraulic Disc Brake Calipers\u003c\/li\u003e\n\n\u003cli\u003eWireless Di2 compatibility for a clean cockpit\u003c\/li\u003e\n\n\u003cli\u003eNew ergonomic design for comfortable grip and high operability\u003c\/li\u003e\n\n\u003cli\u003eExcellent brake control with SERVOWAVE mechanism\u003c\/li\u003e\n\n\u003cli\u003eImproved modulation performance for delicate braking\u003c\/li\u003e\n\n\u003cli\u003eSupports both wired and wireless Di2 connections\u003c\/li\u003e\n\n\u003cli\u003eSupports satellite shifter connection\u003c\/li\u003e\n\n\u003cli\u003eJ-Kit specification for efficient assembly work\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\u003eSeries: ULTEGRA R8100\u003c\/li\u003e\n\n\u003cli\u003eSet contents: ST-R8170 ×2, BR-R8170 ×2, Brake hose\u003c\/li\u003e\n\n\u003cli\u003eCompatible speeds: 2×12-speed\u003c\/li\u003e\n\n\u003cli\u003eBrake type: Hydraulic disc brake\u003c\/li\u003e\n\n\u003cli\u003eBrake hose: SM-BH90-JK-SSR\u003c\/li\u003e\n\n\u003cli\u003eHose joint: Straight\u003c\/li\u003e\n\n\u003cli\u003eRecommended caliper: BR-R8170\u003c\/li\u003e\n\n\u003cli\u003eOil: Shimano Mineral Oil\u003c\/li\u003e\n\n\u003cli\u003eReach adjust mechanism: Included\u003c\/li\u003e\n\n\u003cli\u003eFree stroke adjustment: Supported\u003c\/li\u003e\n\n\u003cli\u003eSERVOWAVE: Included\u003c\/li\u003e\n\n\u003cli\u003eSD300 port: 1\u003c\/li\u003e\n\n\u003cli\u003eSD300 satellite shifter port: 1\u003c\/li\u003e\n\n\u003cli\u003eBattery: CR1632\u003c\/li\u003e\n\n\u003cli\u003eAverage weight: Approx. 391g (ST-R8170 pair)\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIf you're building a new Di2 hydraulic disc setup, this J-Kit is a very convenient option.\u003c\/p\u003e\n\u003cp\u003eSince the lever and caliper combination is pre-packaged, it's easy to choose parts and assembly is smooth. You can fully experience the high shifting performance and brake control characteristic of ULTEGRA.\u003c\/p\u003e\n\u003cp\u003eThe bracket shape is also very easy to grip, providing comfort on long rides and climbs. The brake feel is natural, giving you peace of mind on descents with many turns.\u003c\/p\u003e\n\u003cp\u003eIn terms of performance, it approaches DURA-ACE while offering an excellent balance of cost. It's a recommended set for both upgrades and new builds.\u003c\/p\u003e","brand":"SHIMANO","offers":[{"title":"Left lever + rear brake (hose length: 1700mm) \/ In-store stock","offer_id":50119513866515,"sku":"4550170241049","price":61719.0,"currency_code":"JPY","in_stock":false},{"title":"Left lever + rear brake (hose length: 1700mm) \/ Order from manufacturer (approx. 10 days)","offer_id":50119513932051,"sku":"oty-4550170241049","price":61719.0,"currency_code":"JPY","in_stock":true},{"title":"Right lever + front brake (hose length: 1000mm) \/ In-store stock","offer_id":50119513899283,"sku":"4550170241025","price":61656.0,"currency_code":"JPY","in_stock":false},{"title":"Right lever + front brake (hose length: 1000mm) \/ Order from manufacturer (approx. 10 days)","offer_id":50119513964819,"sku":"oty-4550170241025","price":61656.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/4237\/2883\/files\/jkit1_1.jpg?v=1732522713","url":"https:\/\/store-eirin-jp.com\/en\/products\/st-r8170-br-r8170-jkit","provider":"京都の自転車屋 CYCLE SHOP eirin ＆ サイクルハテナ","version":"1.0","type":"link"}