Shimano Deore RD-M6000-SGS Rear Derailleur-Black

This rear derailleur can handle cogs of 22 to 36 teeth, making it a great choice for your commuter as well as your 8 speed mountain bike. Shadow Clutch Reduces chain slap and dropped chains. Cage Length Long Largest Cog 36T Low Profile Derailleur Cage Reduces of debris and potential for damage.