How to Replace or Service the Bearings in Your Shimano PD-6700 Pedals

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The Shimano PD-6700[paid link] pedals are highly regarded for their durability, comfort, and smooth performance. However, over time and with extensive use, the bearings inside the pedals can wear out, leading to performance issues such as stiffness, grinding noises, or an overall lack of smoothness. Replacing or servicing the bearings in your PD-6700[paid link] pedals is an essential part of maintaining their high performance and extending their lifespan. This guide will walk you through the steps to properly replace or service the bearings in your Shimano PD-6700 pedals, ensuring optimal function for your next ride.

Tools Required

  • 10mm pedal wrench[paid link] or a 15mm open-end wrench
  • 8mm hex key
  • Small flathead screwdriver
  • Needle nose pliers
  • Bearing grease
  • Replacement bearings (compatible with Shimano PD-6700)
  • Clean cloth or rag
  • Small parts tray (optional, to organize components)

Step-by-Step Guide to Replacing or Servicing Bearings in Shimano PD-6700 Pedals

1. Removing the Pedals from the Bike

Before servicing the bearings, you must remove the pedals from your bike. Follow these steps:

  • Use the 10mm pedal wrench[paid link] (or 15mm open-end wrench) to remove the pedals from the crankset.
  • Turn the pedal in the opposite direction of the crank arm to loosen it. Left pedal is removed by turning clockwise, and the right pedal by turning counterclockwise.
  • Once both pedals are removed, set them aside on a clean surface.

2. Disassembling the Pedal Body

With the pedals removed, you can now disassemble the pedal body to access the bearings:

  • Use an 8mm hex key to remove the pedal axle from the body. This requires you to unscrew the axle from the pedal body.
  • Once the axle is unscrewed, carefully pull the axle out of the pedal body. Be mindful of the parts within the pedal body, including the bearing and any seals that might be present.

3. Inspecting the Bearings

Once the pedal axle is removed, inspect the bearings for wear or damage:

  • Look for signs of corrosion, pitting, or roughness when rotating the bearing by hand.
  • If the bearings feel rough or have noticeable damage, they will need to be replaced.

4. Removing the Old Bearings

To remove the worn or damaged bearings, you will need to carefully extract them from their housing:

  • Use a small flathead screwdriver or needle nose pliers to gently pry the bearings out of the pedal body. Be cautious not to damage the bearing housing.
  • Clean the area around the bearing seat with a clean rag to remove any dirt or debris that may have accumulated.

5. Installing New Bearings

Now it’s time to install the new bearings:

  • Grease the new bearings with a high-quality bearing grease to ensure smooth operation and to protect them from moisture.
  • Place the new bearings into the pedal body, making sure they are seated properly and securely.
  • Double-check that the bearings are flush with the housing and move freely without any binding or resistance.

6. Reassembling the Pedal

After the new bearings are installed, you can reassemble the pedal:

  • Insert the pedal axle back into the pedal body and screw it in using the 8mm hex key.
  • Tighten the axle securely, but be careful not to overtighten, as this could cause damage to the threads.

7. Reattaching the Pedals to the Crankset

Once the pedal body is reassembled, it’s time to reinstall the pedals onto the bike:

  • Apply a small amount of grease to the pedal threads to prevent seizing or rusting.
  • Reinstall the pedals by threading them back onto the crankset, tightening them in the appropriate direction (right pedal counterclockwise, left pedal clockwise).
  • Tighten them securely with the pedal wrench.

Maintenance Tips to Extend Bearing Lifespan

To keep your Shimano PD-6700 pedals running smoothly, regular maintenance is key:

  • Clean the pedals after each ride to remove dirt and debris that could cause bearing wear.
  • Apply fresh bearing grease every few months, especially if you ride in wet or harsh conditions.
  • Inspect the pedals periodically for any signs of bearing wear, such as resistance when spinning the pedal axle or unusual noises.

By following these steps, you can successfully replace or service the bearings in your Shimano PD-6700 pedals, ensuring they perform like new. Proper bearing maintenance will enhance the lifespan of your pedals and keep your rides smooth and enjoyable.