How to Install, Adjust, and Maintain the XX1 X-SYNC Chainring

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in Chainring, SRAM, XX

The XX1 X-SYNC chainring by SRAM is a high-performance component designed for precise chain retention in 1x drivetrains. Its advanced narrow-wide tooth profile provides superior chain control, reducing the risk of chain drops even in demanding conditions. To maximize the lifespan and performance of your XX1 X-SYNC chainring, proper installation, adjustment, and regular maintenance are essential.

This guide covers everything from installation to maintenance, helping you avoid common mistakes and ensuring your drivetrain runs smoothly.

Tools Required

  • 5mm Allen wrench [paid link] (for chainring bolts)
  • Torque wrench [paid link] with 5mm Allen socket
  • Bottom bracket tool [paid link] (if removing crankset)
  • Chain wear checker
  • Degreaser and chain cleaner
  • Chain lubricant
  • Soft brush and clean rag

Understanding the XX1 X-SYNC Chainring Design

The SRAM XX1 X-SYNC chainring is engineered for optimal chain retention, making it ideal for mountain biking, gravel riding, and cyclocross. Key features include:

  • Narrow-wide tooth profile: The alternating wide and narrow teeth engage with the chain for better grip.
  • Machined aluminum construction: Ensures durability while maintaining a lightweight design.
  • Direct mount or spider-based options: Available for different crankset configurations.
  • Compatible with Eagle and 11-speed drivetrains: Works seamlessly with SRAM XX1 and other 1x drivetrains.

Before installation, ensure you have the correct BCD (Bolt Circle Diameter) or direct mount option for your crankset.

Step-by-Step Guide to Installing the XX1 X-SYNC Chainring

1. Removing the Old Chainring

  1. Shift the chain to the smallest rear cog for slack.
  2. Remove the crankset if required (for direct-mount chainrings).
  3. Use a 5mm Allen wrench [paid link] to remove the chainring bolts (for spider-mounted chainrings).
  4. Carefully remove the old chainring and clean the mounting area.

2. Installing the XX1 X-SYNC Chainring

For Direct Mount Chainrings:

  1. Align the chainring with the crank spindle, ensuring proper orientation.
  2. Slide the chainring onto the spindle and secure it using the crank arm preload bolt.
  3. Tighten to SRAM’s recommended torque (usually 40Nm for direct-mount chainrings).

For Spider-Mounted Chainrings:

  1. Place the chainring on the spider, ensuring the bolt holes align.
  2. Insert the chainring bolts and tighten them in a crisscross pattern.
  3. Torque the bolts to 5-7Nm for secure fitting.

3. Reinstalling the Crankset and Chain

  1. Reinstall the crankset and tighten the spindle bolt to specification.
  2. Check chainline alignment and ensure the chain sits properly on the ring.

Adjusting the Chainline for Optimal Performance

Proper chainline is crucial for smooth pedaling and drivetrain efficiency. Misalignment can cause premature wear and shifting issues. Follow these steps:

  • Check the manufacturer’s specifications for your bottom bracket and chainring setup.
  • Ensure the chainring sits at the correct offset (boost and non-boost configurations differ).
  • If the chainline appears off-center, consider using spacers or a different offset chainring.

Routine Maintenance for the XX1 X-SYNC Chainring

1. Cleaning the Chainring

Regular cleaning prevents grime buildup and premature wear:

  • Use a soft brush and degreaser to remove dirt from the teeth.
  • Rinse and dry thoroughly before lubrication.
  • Inspect for excessive wear on the narrow-wide teeth.

2. Lubricating the Chain

Proper lubrication reduces wear and enhances efficiency:

  • Apply a dry or wet lube [paid link], depending on riding conditions.
  • Wipe off excess to prevent dirt accumulation.
  • Check for chain stretch using a chain wear tool.

Common Issues and Troubleshooting

1. Chain Drops or Skipping

If your chain drops frequently, check for:

  • Excessive wear on the narrow-wide profile.
  • A worn-out chain that no longer engages properly.
  • Incorrect chainline—adjust as needed.

2. Noisy Pedaling

Grinding or clicking sounds may indicate:

  • Dirty or worn-out chainring teeth—clean or replace if needed.
  • Loose chainring bolts—tighten to the correct torque.
  • Chainring misalignment—verify the offset and adjust spacers.

When to Replace the XX1 X-SYNC Chainring

Look for these signs of wear:

  • Shark-fin shaped teeth instead of the original square profile.
  • Frequent chain skipping, even with a new chain.
  • Noticeable grooves or burs on the chainring teeth.

Conclusion

The SRAM XX1 X-SYNC chainring is a highly efficient component, but proper installation and maintenance are key to maximizing performance. By following this guide, you’ll ensure a smooth, reliable, and long-lasting drivetrain. Regular inspections and cleaning will keep your XX1 X-SYNC chainring running at peak efficiency, reducing unnecessary wear and improving ride quality.