Compact Shimano Compatible Rear Derailleur

M21 rear derailleurs are compatible with Shimano (6, 7, 8-speed) road and mountain shifters, allowing you to enjoy a wide variety of bikes that can be revived with these robust components. Constructed with a durable composite and steel design, M21 rear derailleurs are compatible with Shimano's 6, 7, and 8-speed mountain and road systems.

Specification Details: Drivetrain Speeds: 6 Cage Length: Short Rear Derailleur Mount Type: Rear Direct Mount Rear Der/Shifter: Mountain Drivetrain Speeds: 7 Chain Wrap Capacity (teeth): 21 Color: Black Largest Cog: 32 Rear Der/Shifter Compatibility: Road

The versatility of the M21 rear derailleur makes it a reliable choice for a wide range of bike enthusiasts. Whether you're looking to revive an old road bike or upgrade your mountain bike, this component can seamlessly integrate with your Shimano shifting system, delivering smooth and dependable performance.

Designed with a robust composite and steel construction, the M21 rear derailleur is built to withstand the demands of both on-road and off-road riding. Its compatibility with Shimano's 6, 7, and 8-speed mountain and road systems ensures that you can confidently use it with a variety of drivetrain configurations, allowing you to customize your bike to your specific needs.

The short cage length of the M21 rear derailleur provides a compact and efficient design, making it an ideal choice for bikes with limited clearance. The rear direct mount attachment ensures a secure and stable connection to your bike's frame, ensuring precise shifting and reliable performance.

Whether you're looking to breathe new life into an old bike or upgrade your current setup, the M21 rear derailleur offers a versatile and durable solution. Its compatibility with Shimano's wide range of road and mountain shifters allows you to enjoy a diverse selection of bike options, from sleek road machines to rugged trail-ready rigs.

In summary, the M21 rear derailleur is a reliable and adaptable component that can revitalize your biking experience. With its robust construction, compatibility with Shimano systems, and a variety of specification options, the M21 rear derailleur is a great choice for cyclists seeking a dependable and versatile solution for their bike's drivetrain.

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