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Shimano SM-RT81 Centerlock Lockring and Washer - Black

Shimano SM-RT81 Centerlock Lockring and Washer - Black

Genuine Shimano replacement part for the SM-RT81 disc rotor. This set includes the centerlock lock...

Best current price£7.50from Condor Cycles

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Product Information

Full details

This guide is for cyclists using Shimano SM-RT81 disc rotors and needing a replacement centerlock lockring and washer. The key benefit is ensuring secure and reliable disc rotor mounting, crucial for safe and efficient braking. Keep in mind that this product is only compatible with Shimano SM-RT81 rotors and centerlock hubs.

All features

SeriesSM-RT81
Model Part Number8K19801
BrandSHIMANO

Extended Product Information

FAQs

What tools do I need to install the lockring?

You will need a centerlock lockring tool and a torque wrench.

What is the correct torque for the lockring?

The correct torque specification is usually printed on the rotor or hub. Consult the Shimano SM-RT81 documentation or your bike's manual for the exact torque.

Can I use this lockring with other disc rotor models?

No, this lockring is specifically designed for use with Shimano SM-RT81 disc rotors.

What type of hubs is this lockring compatible with?

This lockring is compatible with centerlock hubs and QR Skewer Type, and 12mm, 15mm, & 20mm Thru-Axle Hubs.

How often should I replace the lockring?

Inspect the lockring regularly for wear or damage. Replace it if the threads are damaged or if it no longer tightens properly.

What if the lockring comes loose while riding?

Stop riding immediately and inspect the lockring and rotor. Re-tighten the lockring to the correct torque. If the problem persists, have a professional mechanic inspect the components.

Where can I find the torque specifications?

The torque specifications should be printed on your rotor or hub, or you can find them in the Shimano SM-RT81 documentation or your bike's manual.

Is the washer included?

Yes, this set includes the lockring and the washer.

Troubleshooting

Lockring is loose or not tightening properly.

Check the threads on both the hub and the lockring for damage or debris. Ensure the lockring is the correct type for the hub. Use the correct tool and tighten to the specified torque.

Brake noise or vibration after installation.

Ensure the rotor is properly aligned and not warped. Check for contamination on the rotor or brake pads. Re-tighten the lockring to the correct torque.

Difficulty removing or installing the lockring.

Use the correct tool designed for centerlock lockrings. Ensure the tool is properly engaged before applying force. Apply penetrating oil if needed.

Pros and Cons

Pros

  • Genuine Shimano quality and reliability.
  • Secure centerlock design for optimal braking performance.
  • Includes all necessary components for installation.
  • Wide compatibility with various hub types.
  • Durable construction ensures longevity.
  • Easy to install and replace.

Cons

  • Only compatible with SM-RT81 disc rotors.
  • Requires a centerlock hub for installation.
  • May require specific tools for installation.
  • Color is only available in black.

Setup, Compatibility & Care

Setup:

  1. Ensure the centerlock disc rotor is properly aligned on the hub.
  2. Thread the lockring onto the hub using the appropriate tool.
  3. Tighten the lockring to the specified torque using a torque wrench. Refer to the Shimano SM-RT81 documentation or your bike's manual for torque specifications. Overtightening can damage the hub, while undertightening can cause the rotor to become loose.

Compatibility:

  • This lockring and washer set is specifically designed for Shimano SM-RT81 disc rotors.
  • It is compatible with centerlock hubs and various axle types including QR Skewer Type, and 12mm, 15mm, & 20mm Thru-Axle Hubs.

Care:

  • Regularly inspect the lockring for any signs of wear or damage.
  • Clean the lockring and hub area during routine bike maintenance.
  • Ensure the lockring threads are free of debris to allow for proper tightening.
  • Use a torque wrench to ensure proper torque. Over tightening or under tightening can cause damage.

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