How to Install, Adjust, and Maintain the PD-6800 Pedals

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The Shimano PD-6800 [paid link] pedals, part of the Ultegra series, are a high-performance road bike pedal system that balances weight, durability, and power transfer. Proper installation and maintenance ensure that your pedals function optimally and last for years. In this guide, we’ll cover everything you need to know about setting up your PD-6800 [paid link] pedals, adjusting them for comfort, and maintaining them to prevent wear and tear.

Tools Required

To install and adjust the PD-6800 [paid link] pedals, you’ll need:

Step-by-Step Installation Guide

1. Preparing the Crank Arms

Before installing the pedals, clean the crank arm threads using a rag to remove any dirt or old grease. This ensures a secure and smooth installation.

2. Applying Grease to the Pedal Threads

Apply a small amount of Shimano-approved grease to the threads of each pedal. This prevents corrosion and makes future removal easier.

3. Installing the Right Pedal (Drive Side)

The right pedal has a standard right-hand thread. Insert the pedal into the right crank arm and tighten it by turning clockwise. Use an 8mm Allen wrench [paid link] or pedal wrench [paid link] to securely fasten it.

4. Installing the Left Pedal (Non-Drive Side)

The left pedal has a reverse (left-hand) thread. Insert it into the left crank arm and tighten it by turning counterclockwise.

5. Tightening to the Correct Torque

Use a torque wrench [paid link] to tighten each pedal to Shimano’s recommended 35-55 Nm. Over-tightening can damage the crank threads, while under-tightening may cause the pedals to loosen over time.

Adjusting the PD-6800 Pedal Tension

1. Understanding Tension Adjustment

The PD-6800 pedals feature adjustable spring tension, which controls how tightly the cleats engage and release from the pedals. A lower tension setting makes it easier to unclip, while a higher setting provides a more secure fit.

2. Locating the Tension Adjustment Screw

On the back of each pedal, you’ll find a small screw used to adjust the spring tension. This can be turned using a 3mm Allen wrench [paid link].

3. Increasing or Decreasing Tension

  • Turn the screw clockwise to increase the tension for a firmer cleat engagement.
  • Turn the screw counterclockwise to decrease the tension for easier unclipping.

4. Finding the Right Setting

Test the pedals by clipping in and out a few times. Adjust the tension to a comfortable level [paid link] that provides security without making it too difficult to disengage.

Maintenance and Cleaning

1. Regular Cleaning

Dirt and debris can build up on the pedal surface and inside the mechanism, affecting performance. To clean:

  • Use a soft brush and soapy water to remove dirt.
  • Wipe down with a clean rag and let dry.

2. Lubricating the Pedal Mechanism

Apply a small amount of dry lube [paid link] to the pedal mechanism to ensure smooth engagement and release. Avoid over-lubricating, as excess lube can attract dirt.

3. Inspecting and Replacing Bearings

The PD-6800 pedals have a sealed bearing system, but over time, wear can cause them to feel rough. If you notice resistance or noise while pedaling, consider servicing or replacing the bearings.

Troubleshooting Common Issues

1. Difficulty Clipping In or Out

  • Check if dirt is obstructing the cleat or pedal engagement points.
  • Adjust the tension screw to decrease resistance.
  • Ensure the cleats are not excessively worn.

2. Pedals Feeling Loose

  • Check if the pedals are fully tightened to the crank arms.
  • Inspect the bearings for wear or play.

3. Noisy Pedals

  • Apply grease to the threads if the noise comes from the crank interface.
  • Clean and lubricate the pedal mechanism.
  • Check for wear in the cleats and replace if necessary.

Conclusion

Installing, adjusting, and maintaining your Shimano PD-6800 pedals correctly ensures a smooth and efficient ride. By following this guide, you can extend the lifespan of your pedals, improve performance, and avoid common setup mistakes.