{"product_id":"shimano-grx-rd-rx400-grx-10-speed-rear-derailleur-shadow-double","title":"Shimano GRX RD-RX400 GRX 10s Rear Derailleur, Shadow+ Double","description":"The Shimano GRX RD-RX400 is a gravel-specific rear derailleur engineered for mixed-terrain riding. Its Shadow+ design keeps the chain secure and protected during rough descents and technical sections, while the 10-speed compatibility integrates seamlessly with GRX groupsets. The double-chainring setup delivers reliable shifting across a wide gear range, making it ideal for long gravel adventures where durability and consistent performance matter. Built to handle the demands of unpaved surfaces without sacrificing smooth, precise gear changes.","brand":"Madison","offers":[{"title":"Black","offer_id":56203910709627,"sku":"RDRX400","price":85.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/9191\/6831\/files\/1234_dfe65729-a502-4a75-9c6d-79cc5b7bfc3d.avif?v=1776078907","url":"https:\/\/www.dublin2bike.ie\/products\/shimano-grx-rd-rx400-grx-10-speed-rear-derailleur-shadow-double","provider":"Dublin2Bike","version":"1.0","type":"link"}