The Royal Enfield part number 591565/A refers to the Front Direction Indicator (Blinker/Trafficator) assembly for various Royal Enfield Classic and Bullet 500 models, especially those from around 2012-2018. It's an original, genuine OEM part used for turn signals, fitting models like the Classic 500 (Pegasus, Chrome, Desert Storm) and Bullet 500 EFI.