Shimano GRX RX815 Di2 11-Speed Long Cage Gravel Rear Derailleur Rim Strip Width (mm)_23mm making it ideal for quick

making it ideal for quick locks and daily use

and precision engineering for your off-road adventures

optimized for customizing handlebar height and achieving a comfortable

Equipped with two 3M Scotchlite reflectors for enhanced visibility in low-light conditions

Shimano GRX RX815 Di2 11-Speed Long Cage Gravel Rear Derailleur Rim Strip Width (mm)_23mm making it ideal for quickUpgrade your gravel cycling experience with the Shimano GRX RD RX815 Rear Derailleur the ultimate 11 speed long cage derailleur designed for mixed terrain versatility and superior performance. Engineered specifically for gravel, adventure, and cyclocross riding, this derailleur combines innovative technology, durable materials, and precise shifting for maximum reliability on the toughest terrains. Materials & Construction: Built with a robust black