Ultralight Bicycle Derailleur Extension Cable Bike Rear Derailleur Extension Cable Road Bike

Label:Yes Size: 42*9.9mm(1.65*0.39in) Material: Aluminium Zinc Zinc Zinc Zinc Alloy Color/optional color: black/red/etc Use scene: cycling Package Contents:1pc rear derailleur Extension Cable

Features: It can make transition from shifting line pipe to bicycle rear derailleur smoother, with smoother radian, improve the speed change efficiency, and at the same time, it can also play a role in prolonging.