SunRace Narrow-Wide MX00 Chainring - 96BCD - 40T - Black

The SunRace Narrow-Wide MX00 Chainring is designed for high-performance mountain biking. It featur...

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Merlin CyclesSunrace Black Narrow-Wide Mx00 Alloy Chainring - 96Bcd - 4 Arm, 96Mm / 40
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Product Information

Full details

The SunRace Narrow-Wide MX00 Chainring is designed for cross-country and trail mountain bikers seeking reliable chain retention in a lightweight package. Crafted from high-quality 7075 alloy, this component excels at preventing chain drops during aggressive riding, though its 96mm BCD configuration requires careful verification of your current crankset compatibility before purchase.

All features

Model Part NumberCRMX00.40-HP
BrandSunRace

Extended Product Information

FAQs

Does this chainring work with all chain types?

It is optimized for modern 1x specific chains. Ensure your chain width matches the drivetrain speed you are running.

Can I use this for a 2x setup?

No, the narrow-wide tooth profile is specifically designed for 1x systems and will not allow for front shifting.

What is the BCD on this ring?

This model has a 96mm Bolt Circle Diameter (BCD).

How long does this chainring last?

Longevity depends on riding conditions and maintenance, but the 7075 alloy is highly durable and resistant to premature wear.

Do I need a chain guide with this?

Usually, a narrow-wide chainring provides enough retention that a full chain guide is not necessary, though some riders use a light bash guard or guide for extreme downhill conditions.

Troubleshooting

Chain dropping during rough descents

Check your chain length and ensure your rear derailleur clutch is engaged and functioning correctly.

Audible clicking or grinding noise

Verify that the chain is correctly seated on the narrow-wide teeth and check for debris buildup in the gaps.

Chainring feels loose

Re-tighten the mounting bolts to the recommended torque specification using a torque wrench.

Pros and Cons

Pros

  • Excellent chain retention on technical trails
  • High strength-to-weight ratio due to 7075 alloy
  • Durable construction resists wear under high tension
  • Clean, minimalist aesthetic

Cons

  • Compatibility limited to 96mm BCD cranksets
  • 40T size may be too large for steep climbing-focused setups
  • Not compatible with multi-ring front shifting systems

Setup, Compatibility & Care

To install, ensure your crankset is compatible with a 96mm BCD standard. Use a standard chainring bolt set and tighten to the manufacturer's specified torque rating. Since this is a narrow-wide ring, ensure your chain is cleaned and lubricated regularly to minimize wear on the tooth profiles. Periodically check that your chainring bolts remain torqued to prevent movement or noise during heavy power output.

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