Shimano’s Acera rear derailleur makes use of advanced designs that make it shift better and last longer. HyperGlide technology results in faster shifting, and Double Servo technology utilizes a double servo-panta mechanism that enables the rear derailleur to track perfectly to each shift and maintain an optimum distance from each sprocket.
– Maximum cog size: 34t
– Total capacity: 45t
– Pulleys: 11t
– Chain compatibility: HG 9-speed
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