SRAM XX1 Eagle Rear Derailleur - 12-Speed Long Cage 52t Max Lunar S.H.I.S Lower-EC49 Machined aluminum cups are durable

Machined aluminum cups are durable and lightweight

Bead Folding e-Bike approved No Labeled Size 29x2

Includes one Phat Bike Kit to fit fat bikes with tires up to 4

A dual sided power measurement system calculates total watts - it’s subtle lightweight and boasts a long battery life

SRAM XX1 Eagle Rear Derailleur - 12-Speed Long Cage 52t Max Lunar S.H.I.S Lower-EC49 Machined aluminum cups are durableSRAM XX1 Eagle Rear Derailleur 12 Speed Long Cage 52t Max Lunar. Occupying its rightful place at the top of the Eagle ecosystem the XX1 Eagle rear derailleur gives no compromise racers and dream bike builders a true top tier option. The crisp precise XX1 shifting feel athletes rely on features an updated cage geometry for improved chain management. Type 3 clutch is smoother and more durable 14T lower pulley Includes a chain gap tool that makes it easy