NEW Shimano Tiagra RD-4700-GS Rear Derailleur - 10 Speed, Medium Cage, Silver Type_Hubs the Saris Mag will do

the Saris Mag will do the job

Ample tire clearance and single speed-ready Alternator Flat Mount dropouts will see you through the muddiest rides

Designed and built especially for single speed bikes

the Big Block will hold up its end of the deal

The Full Metal Fenders complement any road bike while providing full-wrap coverage

NEW Shimano Tiagra RD-4700-GS Rear Derailleur - 10 Speed, Medium Cage, Silver Type_Hubs the Saris Mag will doShimano 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