Shimano RD-A350 is a rear derailleur compatible with the Shimano Index System (SIS) and designed for smooth and precise shifting. It offers a total capacity of 28 teeth, making it suitable for a wide range of gearing options. The derailleur features an easy-to-use SIS adjustment mechanism that allows for fine-tuning of shifting performance. It is compatible with Shimano UG chains and requires a specific Shimano SIS cable for optimal operation. With its reliable design and simple installation, the Shimano RD-A350 is an excellent choice for cyclists looking to enhance their shifting experience.