Shimano FD-TY20 is a front derailleur designed for smooth and precise shifting. It is compatible with 6-speed freewheels and features a dual-pull design, allowing for use with either top-pull or bottom-pull shifters. The FD-TY20 is also compatible with a wide range of chainrings, making it suitable for a variety of riding styles. With its durable construction and easy installation, the Shimano FD-TY20 is an excellent choice for recreational and fitness cyclists.