How to Replace or Service the Bearings in Your Shimano SM-SH10 Pedals

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Shimano’s SM-SH10 [paid link] pedals are known for their durability, performance, and smooth riding experience. However, like any precision component, their bearings can wear out over time, affecting pedal efficiency and overall comfort. Replacing or servicing the bearings in your Shimano SM-SH10 [paid link] pedals is an essential maintenance task that can extend the lifespan of your pedals and ensure optimal performance.

Tools Required

  • Shimano SM-SH10 [paid link] pedal wrench [paid link] or 15mm pedal wrench [paid link]
  • 5mm Allen wrench [paid link]
  • Pedal bearing grease
  • Clean cloths or rags
  • Needle-nose pliers (optional)
  • Small flathead screwdriver (optional)
  • Replacement bearing kits (specific to Shimano SM-SH10)

Understanding the Bearings in Your Shimano SM-SH10 Pedals

The Shimano SM-SH10 pedals use sealed cartridge bearings, which are known for their smooth performance and long-lasting durability. These bearings allow the pedal to spin freely while minimizing the effects of dirt, moisture, and contaminants. However, over time, the bearings can wear down due to constant friction, especially if they are exposed to the elements or inadequate maintenance.

To maintain peak performance, it’s important to replace or service the bearings in your Shimano SM-SH10 pedals regularly.

Step-by-Step Guide to Replacing or Servicing Shimano SM-SH10 Pedal Bearings

Step 1: Remove the Pedals from the Bike

To begin the bearing replacement or service process, first remove the pedals from your bike. Use a Shimano SM-SH10 pedal wrench [paid link] or a 15mm pedal wrench to loosen and remove both pedals.

  1. Position the wrench on the pedal axle.
  2. Turn the wrench counterclockwise to loosen the pedal on the left side (reverse-threaded).
  3. For the right pedal, turn the wrench clockwise to loosen.

Take care to avoid damaging the pedal threads during removal. If you experience difficulty removing the pedals, try applying a small amount of penetrating oil to the threads and let it sit for a few minutes before attempting to remove the pedal again.

Step 2: Disassemble the Pedal

Once the pedals are removed, place them on a clean work surface. The next step is to remove the pedal body to access the bearings.

  1. Use a 5mm Allen wrench [paid link] to remove the pedal body bolts.
  2. Carefully separate the pedal body from the pedal axle.
  3. You should now have access to the internal components, including the bearings.

Step 3: Remove the Old Bearings

The Shimano SM-SH10 pedals feature cartridge bearings that are housed in the pedal axle. To remove the old bearings, you may need to carefully use a flathead screwdriver or needle-nose pliers to extract the bearing assembly from the pedal housing. Be sure to handle the bearings gently to avoid damaging the internal parts.

  1. Carefully pull the bearings out of their housing, taking note of the position and orientation of the bearings for proper reassembly.
  2. If the bearings are stuck, gently tap the axle with a rubber mallet to loosen them, but be cautious to avoid damaging the axle.

Step 4: Clean the Pedal and Axle Housing

Before installing the new bearings, thoroughly clean the pedal body and axle housing to remove any dirt, debris, and old lubricant.

  1. Use a clean cloth or rag to wipe down the inside of the pedal body and axle housing.
  2. Apply a small amount of bearing grease to the cleaned housing, ensuring even coverage.

This step is crucial for ensuring that the new bearings are properly lubricated and protected from contaminants, which could cause premature wear.

Step 5: Install the New Bearings

Now that the pedal housing and axle are clean and prepared, it’s time to install the new bearings. Shimano provides replacement bearing kits designed specifically for the SM-SH10 pedals.

  1. Insert the new bearings into their respective housing positions, ensuring they fit snugly and are oriented correctly.
  2. Apply a small amount of bearing grease to the bearings before inserting them to help reduce friction and protect against moisture.

It’s important to make sure the bearings are aligned correctly to prevent any wobble or uneven spinning of the pedal.

Step 6: Reassemble the Pedal

Once the new bearings are installed, reassemble the pedal by reversing the disassembly steps.

  1. Carefully slide the pedal body back onto the pedal axle.
  2. Tighten the pedal body bolts using the 5mm Allen wrench [paid link], ensuring they are secure but not over-tightened.

This will hold the pedal assembly together and ensure the internal components remain in place.

Step 7: Reinstall the Pedals on the Bike

After the pedal is reassembled, it’s time to reinstall the pedals back onto your bike. Apply a small amount of grease to the pedal threads before reinstalling the pedals to make future removal easier and to prevent rusting.

  1. Attach the left pedal to the left crank arm and tighten it using the 15mm pedal wrench. Remember, the left pedal has a reverse thread, so turn clockwise to tighten.
  2. Attach the right pedal to the right crank arm and tighten it by turning counterclockwise.

Make sure the pedals are securely tightened to avoid any issues during your ride.

Testing and Final Checks

After reinstalling the pedals, spin them manually to check for smoothness and to ensure there is no grinding or stiffness. If the pedals feel smooth and there are no issues with resistance, the bearing replacement or service has been successful.

If you notice any irregularities in the pedal’s performance, it’s essential to repeat the disassembly process and check for any parts that may not have been properly installed.

When to Replace the Bearings Again

Even with proper maintenance, bearings can wear out over time. It’s advisable to inspect your Shimano SM-SH10 pedals every 12 months or every 2,000-3,000 miles, depending on your riding conditions. If you notice any increased friction, noise, or decreased performance, it may be time to replace or service the bearings again.

Conclusion

Replacing or servicing the bearings in your Shimano SM-SH10 pedals is an essential part of maintaining their smooth performance and extending their lifespan. By following this step-by-step guide, you can ensure that your pedals continue to function optimally, providing you with a comfortable and efficient riding experience. Proper bearing maintenance is not only critical for the performance of your pedals but also for the overall safety and longevity of your bike.