Rear derailleur Shimano Altus

Shimano Altus RD-M2000 derailleur: a reliable choice for smooth shifting

The Altus derailleur RD-M2000 from Shimano is one of the most popular components in the entry-to-mid-level drivetrain category. Designed for mountain bikes, hybrid bikes, and trekking bikes, this rear derailleur stands out for its reliability, ease of maintenance, and solid performance for casual to moderate sport use.

A 9-speed Altus derailleur designed for versatility

The Shimano Altus RD-M2000 is a 9-speed Altus derailleur, compatible with a 9-speed cassette. It features Shimano’s Shadow RD technology—a compact and low-profile design originally developed for higher-end MTB groupsets. This design reduces the risk of snagging on rocks or trail obstacles, making it ideal for rough terrain.

With a total capacity of 45 teeth (in its long cage SGS version), this derailleur can handle a large sprocket of up to 36 teeth, which is perfect for off-road use and climbing. It is compatible with both double and triple cranksets.

Altus RD-M2000 technical specifications

• Compatibility: 9-speed drivetrains

• Shadow RD Technology: low-profile and compact design

• Total Capacity: 45 teeth

• Maximum Sprocket Size: 36 teeth

• Mount Type: standard hanger mount

• Cage Length: SGS (long cage)

• Intended Use: MTB, trekking, hybrid bikes

• Weight: approx. 320 g

Why choose the Altus RD-M2000 derailleur ?

The Altus derailleur strikes a great balance between performance and affordability. It delivers smooth and accurate gear shifts—even under load—thanks to consistent chain tension. It’s also valued for its rugged construction and durability, two key qualities for riders looking for a reliable drivetrain without breaking the bank.

This model is an excellent fit for casual mountain bikers, daily commuters, and touring cyclists who want a rear derailleur that’s both sturdy and easy to adjust. It performs well on mixed terrain and offers solid chain retention, even on rocky paths.

Key takeaways: performance and reliability

The Altus derailleur 9-speed is an effective solution for Shimano 9-speed drivetrains. It fits seamlessly into a complete transmission group, including shifters, crankset, cassette, and chain. By choosing this component, you're opting for a well-balanced, dependable, and versatile shifting system.

In summary

The Shimano Altus RD-M2000 is a smart choice for cyclists looking to upgrade or replace their rear shifting system with an efficient, affordable, and high-performing part. Compatible with 9-speed drivetrains, this rear derailleur suits a wide range of MTB or hybrid setups.

Pro tip: To extend the life of your Altus derailleur, make sure to clean and lubricate your chain regularly, and check that the derailleur hanger is straight to avoid mis-shifting.