Shimano Deore Xt M8000 Sgs Shadow + Rear Derailleur 11 Speed

Shimano Deore XT M8000 SGS Shadow Rear Derailleur 11 Speed. Shimano's move to 11 speed Mountain Bike has been about more than just adding another cog. It's about fundamentally redesigning the way the entire system shifts to make it smoother, crisper, and more reliable. And at the heart of any redesign will always be the rear derailleur. The all new Shimano Deore XT M8000 SGS Shadow rear derailleur has been redesigned with a lighter shift than its predecessor, with 20% less force required to move the chain, and it does so more efficiently so every shift feels smoother and easier. Chain stability has been improved for less slap noise, and more efficiency with every pedal stroke. The all new Shadow design with an optimized slant angle helps keep the chain perfectly tensioned and stable, with an easy to adjust design. The new pulleys and jockey wheels have a new tooth design to reduce friction and make every pedal stroke more efficient.