The Shimano FC-6700 [paid link] chainring is a precision component that plays a vital role in the smooth operation of your bike’s drivetrain. Whether you’re replacing a worn-out chainring or upgrading to improve performance, the installation process is crucial to ensuring optimal function. In this guide, we’ll explore the common mistakes riders make during Shimano FC-6700 [paid link] chainring installation and how you can avoid them to protect your drivetrain and enjoy smoother rides.

1. Incorrect Torque Settings

One of the most common mistakes during Shimano FC-6700 [paid link] chainring installation is failing to apply the correct torque to the bolts. Over-tightening or under-tightening the bolts can lead to several issues, including improper chainring alignment, stripped threads, and potential crank arm damage.

How to Avoid It:

• Refer to Shimano’s recommended torque specifications for the FC-6700 chainring bolts (typically 10-12 Nm for the chainring bolts).
• Always use a reliable torque wrench [paid link] to ensure accuracy.
• Tighten the bolts in a crisscross pattern to ensure even pressure distribution.

2. Failing to Clean the Crankset

Installing the chainring on a dirty crankset can lead to poor performance and unnecessary wear. Dust, dirt, and grime can affect the fitment of the chainring, potentially causing slipping or misalignment during pedaling. This may also accelerate wear on both the chainring and the crankset.

How to Avoid It:

• Before installing the FC-6700 chainring, clean the crankset thoroughly using a degreaser and a soft cloth.
• Make sure the crankset is dry before placing the new chainring in position.
• Regularly clean your crankset and chainring to prevent buildup of dirt and debris, which could impact performance over time.

3. Incorrect Chainring Orientation

Another common mistake is installing the Shimano FC-6700 chainring with the wrong orientation. The chainring has a specific direction it must face, and installing it backward can cause shifting issues, wear, and poor drivetrain performance.

How to Avoid It:

• Pay attention to the markings on the Shimano FC-6700 chainring. Typically, the side with the Shimano logo or text should face outward, while the flat side goes toward the crank arm.
• Double-check the installation before tightening the bolts to ensure the chainring is oriented correctly.

4. Ignoring Chainring and Crank Compatibility

The Shimano FC-6700 chainring is designed to fit specifically with Shimano’s 10-speed cranks. A common mistake when replacing a worn-out chainring is attempting to fit a chainring from a different model or a different manufacturer. This can lead to poor shifting performance and premature wear on both the chainring and chain.

How to Avoid It:

• Ensure the FC-6700 chainring is compatible with your specific crankset model.
• Use the correct number of bolts (usually five) and bolt circle diameter (BCD) that matches the Shimano FC-6700 crankset.
• Always use Shimano-approved components for a smooth and reliable drivetrain.

5. Skipping the Chain Check

Installing a new chainring without verifying the condition of your chain is a mistake that can lead to premature wear on the new component. A worn chain can cause poor shifting performance and can rapidly wear out the teeth of a new chainring, especially on a high-precision model like the FC-6700.

How to Avoid It:

• Before installing a new chainring, inspect your chain for wear using a chain checker tool.
• If the chain is worn beyond the recommended limit, replace it before installing the new chainring.
• Regularly maintain and replace your chain as part of your routine bike maintenance.

6. Incorrectly Aligning the Chainring and Crank Arm

Alignment issues can cause shifting problems, inefficient power transfer, and drivetrain noise. When installing the Shimano FC-6700 chainring, it’s crucial to ensure the chainring is aligned properly with the crank arm and other drivetrain components.

How to Avoid It:

• Carefully position the chainring onto the crank arm, ensuring the bolt holes line up perfectly.
• Make sure the chainring is flush against the crank arm and that it doesn’t wobble or move once tightened.
• Double-check that the chainring and the chain align correctly after installation to ensure smooth shifting.

7. Neglecting to Lubricate Bolts and Threads

A common but often overlooked mistake is failing to lubricate the chainring bolts and threads. Dry bolts can become seized over time, especially if exposed to moisture, leading to difficulties during removal and future maintenance.

How to Avoid It:

• Apply a light coat of anti-seize or grease to the threads of the chainring bolts.
• Avoid using too much grease, as it can attract dirt and grime, but a small amount will prevent rusting and ease future disassembly.

8. Failing to Check for Crank Arm Damage

Before installing the Shimano FC-6700 chainring, inspect the crank arm for any signs of damage, wear, or cracks. Installing a new chainring on a damaged crank arm can result in dangerous situations, including bolt failure or loss of pedal power.

How to Avoid It:

• Thoroughly inspect the crank arm for cracks, bends, or any signs of wear before installing the chainring.
• Replace any damaged crank arms before proceeding with the chainring installation to ensure a safe and functional drivetrain.

9. Ignoring Chainline Alignment

Proper chainline alignment ensures efficient pedaling and minimizes wear on drivetrain components. If your chainring is misaligned, it can cause shifting issues, increased chain wear, and inefficiencies during pedaling.

How to Avoid It:

• After installing the FC-6700 chainring, check the chainline using a straightedge or chainline tool.
• Ensure the chainring is aligned with the rear cassette for smooth shifting and optimal power transfer.

Conclusion

Avoiding these common mistakes when installing your Shimano FC-6700 chainring can significantly enhance your bike’s performance and prolong the life of your drivetrain components. By paying attention to proper torque settings, cleaning, correct orientation, and compatibility, you’ll ensure that your chainring is installed correctly, operates efficiently, and provides long-lasting performance. Always double-check your work and make sure every part of the installation is done correctly to avoid costly repairs and the frustration of poor shifting.