The Shimano Alivio RD-M4000 SGS is a 9 speed rear derailleur with top normal pull. Quick and smooth shifting with a sleek look. Shimano Shadow rear derailleurs can be mounted to traditional derailleur hangers and direct mount hangers. Direct Mount hangers
• Long Cage
• Compatible with 9 speed cassettes or freewheels
• RD-M4000 SGS
• With Shimano Packaging
• Only 254 grams