{"product_id":"shimano-ultegra-di2-8170-disc-brake-shifter","title":"Shimano Ultegra Di2 R8170 Disc Brake Shifter","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eShimano Ultegra Di2 R8170 Disc Brake Shifter\u003c\/strong\u003e brings wireless electronic shifting to a lever designed around how your hands actually sit on the bars. The redesigned hood shape offers a more ergonomic profile than its predecessor — giving you consistent grip whether you're in the drops, on the hoods, or pushing through a hard effort. Hydraulic disc brake modulation is integrated into the same lever body, keeping the cockpit clean without compromise.\u003c\/p\u003e\n\u003cp\u003eShifting is triggered wirelessly, so there are no exposed wires running from your levers — a meaningful simplification for both aesthetics and long-term reliability. The lever delivers a clear, tactile click on every shift input, so you always know the command has registered. Available individually as a left or right lever, so you can replace a single unit or build up exactly what you need.\u003c\/p\u003e\n\u003c!-- VERIFY: Is the 8170 shifter satellite-button compatible? Worth confirming for buyers building custom setups. --\u003e \u003c!-- VERIFY: Confirm wireless protocol — does this pair directly with 8170 Di2 rear\/front derailleur without a junction box? --\u003e\n\u003ch3\u003eShimano Ultegra Di2 R8170 Disc Specs at a Glance\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem compatibility:\u003c\/strong\u003e Shimano Ultegra Di2 R8170 series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake type:\u003c\/strong\u003e Hydraulic disc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShifting:\u003c\/strong\u003e Wireless electronic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold as:\u003c\/strong\u003e Individual lever (left or right — select variant)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"Left","offer_id":43520581271596,"sku":"ISTR8170LF","price":460.0,"currency_code":"USD","in_stock":true},{"title":"Right","offer_id":43520581304364,"sku":"ISTR8170RF","price":460.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/shimano-ultegra-di2-8170-disc-brake-shifter-8875380.jpg?v=1771297274","url":"https:\/\/ricycles.com\/products\/shimano-ultegra-di2-8170-disc-brake-shifter","provider":"RA Cycles","version":"1.0","type":"link"}