NEW Shimano Tiagra RD-4700-GS Rear Derailleur - 10 Speed, Medium Cage, Silver Type_Hubs Designed and built especially for

Designed and built especially for single speed bikes

Motion sensor automatically activates the lighting

slick design provides optimal traction on rough streets

Weight: 522

It boasts impressive traction and stability for its minimal weight and size

NEW Shimano Tiagra RD-4700-GS Rear Derailleur - 10 Speed, Medium Cage, Silver Type_Hubs Designed and built especially forShimano Tiagra RD 4700 Rear Derailleurs Revised cable pitch offers accurate and long lasting performance Wide link design increases rigidity 11 tooth pulleys for reduced pulley wear and chain noise Rear Derailleur Mount Type: 10x1 Standard Rear Der Shifter Compatibility: Shimano Road Cage Length: Medium Drivetrain Speeds: 10 Color: Silver Chain Wrap Capacity (teeth): 41 Largest Cog: 34