The Shimano FD-M3100-M is a front derailleur built for 3x9-speed mountain bike drivetrains, designed to deliver smooth and responsive shifting performance across a wide gear range. Engineered for compatibility with 40T chainrings, this component is ideal for trail riders, commuters, and recreational cyclists who want reliable and efficient front shifting in a modern drivetrain setup.Part of Shimano's Alivio series, the FD-M3100-M offers a side swing design, which improves cable routing and reduces interference with rear suspension systemsmaking it perfect for today's more compact MTB frames. The wide pivot link design enhances rigidity and durability, while Shimanos precision engineering ensures consistent gear changes, even under load. This derailleur is compatible with standard bottom bracket mount frames and offers a clean, low-profile fit.Features:- Compatible with 3x9-speed drivetrains- Designed for 40T maximum top chainring- Side Swing design for improved cable routing and shifting- Bottom bracket mount (conventional clamp style)- Part of Shimanos reliable Alivio MTB component series

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