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