How to Install, Adjust, and Maintain the XX1 Crankset

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in Crankset, SRAM, XX

The SRAM XX1 Crankset [paid link] is a top-tier option for riders who demand lightweight durability and efficient power transfer. Designed for single-chainring setups, this crankset provides exceptional stiffness and a smooth pedaling experience. However, proper installation and maintenance are crucial to keeping it performing at its best.

In this guide, we’ll walk through the full installation process, how to adjust the XX1 crankset [paid link] for optimal performance, and essential maintenance practices to prolong its lifespan.

Tools Required [paid links]

Before beginning the installation, ensure you have the following tools:

Step-by-Step XX1 Crankset Installation

1. Prepare the Bottom Bracket

Before installing the XX1 crankset [paid link], make sure your bottom bracket (BB) is clean and properly greased. Check compatibility, as SRAM XX1 cranks are typically designed for DUB [paid link] bottom brackets.

  1. Remove any dirt or grime from the bottom bracket shell.
  2. If installing a new BB, apply anti-seize compound to the threads (for threaded BBs) or grease the bearing interfaces (for press-fit BBs).
  3. Securely install the bottom bracket using the proper tool, ensuring it’s torqued to manufacturer specifications.

2. Install the XX1 Crankset

With the bottom bracket in place, you’re ready to install the crank arms.

  1. Insert the XX1 crank spindle through the bottom bracket from the right (drive side).
  2. Slide the left crank arm onto the spindle, ensuring a proper fit with the preload adjuster.
  3. Tighten the crank bolt using an 8mm Allen wrench [paid link], applying torque to 54 Nm as recommended by SRAM.
  4. Rotate the cranks to check for smooth movement. If there’s resistance, double-check that the BB and spindle are clean and greased.
  5. Adjust the preload collar to remove excess play without over-tightening.

Adjusting the XX1 Crankset for Optimal Performance

Even after a successful installation, fine-tuning the preload adjuster and ensuring proper chainline are critical.

1. Preload Adjustment

The preload collar on the non-drive-side crank arm allows you to fine-tune the fit:

  • If there’s side-to-side play, turn the adjuster clockwise to tighten.
  • If the cranks feel too stiff, loosen the adjuster slightly.
  • Once adjusted, secure the preload collar in place.

2. Chainline Check

The XX1 crankset is designed for a 49mm chainline, optimized for 1x drivetrains. Ensure the chainring sits in the correct alignment with the cassette for smooth shifting and minimal drivetrain wear.

If misalignment occurs:

  • Check the bottom bracket width for compatibility.
  • Ensure the chainring is mounted correctly (offset rings may be needed).

Maintaining Your XX1 Crankset for Longevity

Regular maintenance is essential to keep your XX1 crankset running smoothly and prevent premature wear.

1. Cleaning and Lubrication

  • Wipe down the crank arms and chainring after every ride to prevent dirt buildup.
  • Periodically remove the crankset to clean the spindle and bottom bracket interface.
  • Apply a light coat of grease on the spindle and bottom bracket bearings.

2. Checking for Wear and Damage

Inspect the following components every few months:

  • Crank arms: Check for cracks or deep scratches, especially after rough rides.
  • Chainring: Look for worn or bent teeth.
  • Bottom bracket bearings: Spin the cranks to check for roughness or grinding, which indicates worn-out bearings.

3. Tightening Bolts and Adjustments

  • Periodically check the crank bolt torque (54 Nm) to ensure the arms are secure.
  • Inspect and adjust the preload collar if any play develops.

Troubleshooting Common XX1 Crankset Issues

1. Creaking or Clicking Sounds

  • Cause: Loose crank bolts or contaminated interfaces.
  • Fix: Retorque bolts and apply fresh grease on contact points.

2. Loose Crank Arms

  • Cause: Incorrect torque or worn splines.
  • Fix: Check torque and inspect the spindle for wear.

3. Rough or Sticky Pedaling

  • Cause: Dirty or worn bottom bracket bearings.
  • Fix: Clean or replace the bottom bracket.

FAQs

1. Can I install an XX1 crankset on a Shimano bottom bracket?

No, SRAM XX1 cranks use DUB [paid link] or GXP [paid link] bottom brackets, which are not compatible with Shimano’s Hollowtech II system.

2. How often should I grease my XX1 crankset?

It’s best to reapply grease every 3-6 months, depending on riding conditions.

3. What torque should I use for the XX1 crank bolt?

SRAM recommends tightening the crank bolt to 54 Nm.

4. How do I know if my XX1 bottom bracket needs replacing?

If you hear grinding noises or feel resistance when pedaling, it’s time to replace the bottom bracket bearings.

5. Can I swap out the XX1 chainring for a different size?

Yes, SRAM XX1 cranks allow for direct mount chainring swaps, so you can change to a different tooth count.

Conclusion

Proper installation, adjustment, and maintenance of your XX1 crankset ensures a smooth, efficient ride while prolonging its lifespan. By following this guide, you can keep your drivetrain in peak condition and avoid costly repairs down the road.