This Sun Race M40 rear derailleur is the perfect addition to any bike enthusiast's collection. Designed for high performance and durability, it is sure to enhance the overall riding experience. It is compatible with a variety of bikes and its sleek design adds a touch of style to any cycling setup.

The derailleur is made by Sun Race, a trusted brand in the cycling community. Its smooth shifting capabilities and reliable construction make it a great choice for both casual and serious riders alike. Whether you're hitting the trails or commuting to work, this rear derailleur will help you get the most out of your bike.