Left crank Shimano Alivio FC-MC19 MC20 M440 170 mm

Shimano Alivio left crank arm FC-MC19 / MC20 / M440 – 170 mm – square taper

Shimano reliability for a smooth and durable drivetrain

The Shimano Alivio left crank arm is designed to efficiently replace a worn or damaged crank arm on a square taper bottom bracket. Compatible with FC-MC19, FC-MC20 and FC-M440 cranksets, it is ideal for riders looking for a strong, reliable component perfectly suited to MTB and trekking drivetrains.

Thanks to Shimano’s proven engineering, this crank arm delivers excellent stiffness, stable pedaling, and efficient power transfer between the rider and the bottom bracket. Its standard 170 mm length fits most cyclists, offering a balanced combination of efficiency, comfort, and pedaling control.

Technical specifications

• Brand: Shimano

• Series: Alivio

• Compatible models: FC-MC19 / FC-MC20 / FC-M440

• Type: Left crank arm

• Length: 170 mm

• Mounting: Square taper

• Pedal thread: Standard 9/16"

• Material: Aluminum

• Color: Black

• Use: MTB, hybrid bike, trekking, touring bike

Key features and benefits

• Square taper compatibility: suitable for many Shimano cranksets and traditional drivetrains

• Optimal stiffness: improved power transmission during pedaling

• Proven durability: aluminum construction resistant to wear and mechanical stress

• Easy installation: quick replacement without changing the entire crankset

• Versatile use: ideal for leisure riding and regular use

This left crank arm integrates seamlessly into a well-balanced drivetrain, ensuring smooth crankset operation, proper bottom bracket alignment, and optimal compatibility with chainrings and chain.

Why choose a Shimano Alivio left crank arm ?

Choosing a Shimano Alivio left crank arm means selecting a component known for its reliability, long service life, and wide compatibility. It is the ideal solution for restoring your bike’s drivetrain without replacing the complete crankset, while maintaining original performance.

Perfect for maintenance or repair of a bike equipped with Shimano Alivio components, it meets the expectations of cyclists looking for a dependable, precise, and durable drivetrain part.