{"product_id":"shimano-grx-st-rx815-di2-11-speed-sti-lever-with-br-rx820-hydraulic-brake-caliper","title":"Shimano GRX ST-RX815 Di2 11-Speed STI Lever with BR-RX820 Hydraulic Brake Caliper","description":"\u003cp\u003eThe Shimano GRX ST-RX815 GRX Di2 11-speed STI paired with the BR-RX820 caliper embodies precision and reliability tailored for gravel riding enthusiasts. Designed with gravel-specific ergonomics, this component set offers optimized gearing and a quiet, stable drivetrain that enhances performance on diverse terrains. Its fully bled hydraulic disc brake system ensures consistent and powerful stopping power with minimal effort, providing riders with confidence even on the most challenging descents.\u003c\/p\u003e\n\n\u003cp\u003eErgonomic enhancements like the higher brake lever axis and curved brake lever improve grip and control on rough surfaces, while the raised hood and recessed finger notch prevent hand slippage and misalignment. The anti-slip texture combined with specialized brake lever coating reduces fatigue during long rides, making this system ideal for endurance gravel adventures. Compatible with 11-speed E-tube Di2, these levers come without electrical cables, allowing you to customize your setup perfectly.\u003c\/p\u003e\n\n\u003cp\u003eIncluded in the kit is the bled right hand ST-RX815 STI lever, BR-RX820 flat mount front brake caliper with pads, hose, and mineral oil—everything needed for immediate installation except rotors and adapters. Explore the full range of \u003ca href=\"\/collections\/shimano-grx\"\u003eShimano GRX components\u003c\/a\u003e and enhance your gravel bike with complementary \u003ca href=\"\/collections\/shimano-grx-accessories\"\u003eGRX accessories\u003c\/a\u003e for a complete riding experience.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDelivering precise and powerful braking control in all weather and terrain conditions\u003c\/li\u003e\n  \u003cli\u003eProviding ergonomic comfort to reduce hand fatigue on long, rugged rides\u003c\/li\u003e\n  \u003cli\u003eOffering seamless integration with 11-speed Di2 electronic shifting systems\u003c\/li\u003e\n  \u003cli\u003eEnhancing grip and confidence on technical descents and rough gravel surfaces\u003c\/li\u003e\n  \u003cli\u003eFacilitating easy installation with a fully bled hydraulic system included in the kit\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 without additional electrical cables, which must be purchased separately\u003c\/li\u003e\n  \u003cli\u003eCompatibility limited to 11-speed E-tube Di2 systems—unsuitable for mechanical shifting setups\u003c\/li\u003e\n  \u003cli\u003eNot supplied with rotors or adapters, requiring separate acquisition for complete brake assembly\u003c\/li\u003e\n  \u003cli\u003eDesigned specifically for gravel and mixed terrain, less ideal for pure road racing applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAre the electrical cables included with this kit?\u003c\/strong\u003e\u003cbr\u003eThe levers are supplied without electrical cables, which need to be ordered separately to match your specific Di2 setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this kit come with brake rotors?\u003c\/strong\u003e\u003cbr\u003eNo, rotors and adapters are not included and must be purchased separately based on your bike’s specifications.\u003c\/p\u003e","brand":"Shimano GRX","offers":[{"title":"Black \/ 11-Speed \/ Right","offer_id":47380193411247,"sku":"RX815820RF","price":335.48,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/rx815820rfa.jpg?v=1787135443","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/shimano-grx-st-rx815-di2-11-speed-sti-lever-with-br-rx820-hydraulic-brake-caliper","provider":"Swinnerton Cycles","version":"1.0","type":"link"}