microSHIFT R10 rear derailleurs feature forged and CNC machined construction that pairs durability with a quality finish. This lightweight and lightweight rear derailleur is robust and designed to get any 10-speed Shimano Road compatible bike back on the road.

• Forged and CNC machined aluminum construction is lightweight and rugged
• Cage is crafted with steel for enhanced chain-rub durability
• For use with Shimano 10-speed road systems
• Not compatible with Shimano Tiagra 4700 road system
• Medium cage has 39t capacity
• 30-34t Max cog
• Color: Black
• Largest Cog: 34
• Rear Derailleur Mount Type: 10x1 Standard
• Chain Wrap Capacity (teeth): 39
• Cage Length: Medium
• Rear Der/Shifter Compatibility: Shimano Road
• Drivetrain Speeds: 10