• New, Mint, Shimano GRX Di2 Gravel RD-RX817 GS 1x11-Speed Shadow Plus 85mm long-cage rear derailleur and made in Japan quality from 2021. Takes a 42T cog. Out of box.
• Shadow Plus Clutch.
• Clean, tight, no rust, straight, strong springs and perfect cosmetic & perfect mechanical condition.
• 1x11-speed Di2 electronic shifting.
• 322 grams/11.3oz.
• RD582.
• FREE shipping in the USA.