This is a vintage Shimano 600 Tricolor rear derailleur, specifically from the RD-6400 series.The derailleur is recognisable by its distinct tri-color stripe logo on the main body. It was designed for 6, 7, or 8-speed drivetrain systems, often featuring a short or medium cage. These components are popular for restoring classic road bikes due to their functionality and smooth shifting performance.
Vintage Used Shimano 600 Tricolour RD6400 Rear Derailleur would be the best fit for those looking to upgrade their bicycle's shifting and add a unique, classic appearance.
