Shimano RD-M3100 Alivio Shadow 9-Speed Rear Derailleur

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The Shimano Alivio M3100 9 speed rear derailleur delivers a low profile design that lets you ride aggressively with fewer interruptions thanks to its Shimano Shadow design chain stabiliser system.
• Wide Range Gearing • Smooth, silent performance • Shimano Shadow Design: chain stabiliser system • Low-profile design • Adjustment barrel: keep cable tension just right, making gear adjustment simple Specifications • Model No: RD-M3100-SGS • Series: Shimano Alivio M3100 Series • Total capacity: 45T • Max. low sprocket: 36T