Shimano XTR 11-speed Cassette - 11-40T

This Shimano CS-M9001 XTR cassette is the lightest 11-speed Dyna-Sys MTB cassette, featuring four ...

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eBayShimano XTR CS-M9001 XTR 11 Speed Cassette 11-40T Brand New
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Leisure Lakes BikesShimano CS-M9001 XTR 11 Speed Cassette 11-40T Silver
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Product Information

Full details

This Shimano XTR CS-M9001 cassette is designed for performance-oriented mountain bikers seeking the lightest possible 11-speed drivetrain with a wide gear range. Its key benefit is improved efficiency and cadence control due to the 11-40T gearing and reduced weight from advanced materials. A potential caveat is the need for 11-speed SIL-TEC chains for optimal performance.

All features

Model Part NumberCSM9001140
BrandSHIMANO

Extended Product Information

FAQs

What is the primary advantage of this cassette?

The primary advantage is its exceptionally low weight, achieved through the use of carbon fibre carriers and titanium sprockets, combined with a wide 11-40T gear range for improved efficiency and climbing.

Do I need a special chain for this cassette?

Yes, Shimano recommends using their 11-speed SIL-TEC chains for optimal performance and durability with this XTR cassette.

What type of riding is this cassette best suited for?

This cassette is ideal for performance-focused mountain biking, including cross-country racing, trail riding, and any discipline where weight savings and a wide gear range are critical.

Is this cassette compatible with all 11-speed systems?

It is compatible with 11-speed Shimano Dyna-Sys systems. Ensure your rear hub has an 11-speed compatible freehub body.

How do I clean and maintain the cassette?

Clean regularly with a degreaser and brush, rinse, and dry. Keep the chain well-lubricated with a quality bike chain lube. Inspect for wear periodically.

What does 'Hyperglide' mean?

Hyperglide refers to Shimano's sprocket design technology, featuring computer-designed, contoured shift gates that allow the chain to move up or down the cassette smoothly and quickly, even under load.

Can I use this cassette with a 10-speed or 12-speed drivetrain?

No, this cassette is specifically designed for 11-speed drivetrains and is not compatible with 10-speed or 12-speed systems.

Troubleshooting

Shifting is rough or inconsistent

Ensure the chain is a compatible 11-speed SIL-TEC chain. Check rear derailleur adjustment, cable tension, and limit screws. Clean and lubricate the chain and cassette.

Cassette feels loose on the hub

Remove the cassette and ensure the freehub body is in good condition. Reinstall the cassette and tighten the lockring to the correct torque specification (typically 40 Nm).

Excessive noise during pedaling

Check the chain for proper lubrication. Inspect sprockets and chain for wear. Ensure the cassette lockring is properly tightened.

Skipping under load

This often indicates a worn chain or sprockets. Replace the chain if it has stretched beyond 0.75%. Inspect cassette sprockets for wear and replace if necessary.

Pros and Cons

Pros

  • Significantly reduces rotational weight for improved acceleration and climbing.
  • Wide 11-40T gear range provides versatility for various terrain.
  • Durable construction with titanium and carbon fiber components.
  • Smooth and precise shifting performance under demanding conditions.
  • Enhanced stiffness due to carbon fiber carriers.

Cons

  • Requires a specific 11-speed SIL-TEC chain for optimal performance.
  • Higher cost associated with premium materials like carbon fiber and titanium.
  • May require a compatible 11-speed freehub body.
  • The lightest construction might be less durable for extremely aggressive riders or rough conditions compared to heavier options.

Setup, Compatibility & Care

Compatibility:

  • This cassette is designed for 11-speed drivetrains.
  • It requires a compatible 11-speed SIL-TEC chain for optimal shifting performance.
  • Ensure your rear wheel hub is compatible with an 11-speed Shimano freehub body. An adapter or specific freehub body may be required for some older or non-Shimano hubs.

Setup:

  • Install the cassette onto the freehub body, ensuring the splines align correctly.
  • Secure the cassette using the provided alloy cassette lockring. Ensure it is tightened to the manufacturer's recommended torque specification using a cassette lockring tool.
  • Proper rear derailleur adjustment and limit screw setting are crucial for achieving optimal shifting performance with the new cassette.

Care:

  • Regularly clean the cassette to remove dirt, mud, and debris. A degreaser and brush can be used, followed by rinsing and drying.
  • Lubricate the chain regularly with a quality bicycle chain lubricant to ensure smooth operation and prolong the life of the cassette.
  • Inspect sprockets for wear (e.g., hooked teeth) and replace the cassette if significant wear is observed to prevent premature chain wear and shifting issues.

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