How to Replace or Service the Bearings in Your Shimano SM-SH11 Pedals

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Shimano SM-SH11 [paid link] pedals are well-known for their durability and smooth performance. However, like all components, the bearings inside these pedals can wear out over time due to constant exposure to external elements like water, dirt, and grit. Replacing or servicing the bearings of your Shimano SM-SH11 [paid link] pedals is an essential skill to maintain their optimal performance. This guide will walk you through the process step-by-step, from disassembling the pedals to reassembling them with new bearings.

Tools Required

  • 8mm Allen wrench [paid link]
  • Needle-nose pliers
  • Flathead screwdriver
  • 10mm spanner wrench
  • Bearing grease (high-quality bicycle grease)
  • Small rubber mallet (optional)
  • Replacement bearings (ensure they are Shimano-compatible)
  • Pedal spanner wrench (optional)

Disassembling Your Shimano SM-SH11 Pedals

Before you start servicing the bearings in your Shimano SM-SH11 [paid link] pedals, it’s important to disassemble the pedals properly to avoid damaging any internal parts.

Step 1: Remove the Pedals from the Bike

  • Use a 15mm pedal wrench [paid link] or an 8mm Allen wrench [paid link] to remove the pedals from your bike crankset.
  • Be sure to loosen both pedals, one at a time. Remember, the left pedal has a reverse thread, so turn counterclockwise to loosen it.
  • Once both pedals are off, set them aside on a clean surface.

Step 2: Remove the Pedal Caps

  • Using a flathead screwdriver, gently pry off the plastic caps that cover the pedal axle. These caps are typically on both sides of the pedal and protect the bearings inside.
  • Take care not to damage the caps, as they need to be reinstalled after replacing the bearings.

Step 3: Extract the Pedal Axle

  • With the pedal caps removed, you will now have access to the pedal axle and the bearings. Use a 10mm spanner wrench to unscrew the nut or bolt securing the axle to the pedal body.
  • If the axle feels stuck, you can gently tap it with a rubber mallet to loosen it. Be cautious not to damage any surrounding parts.
  • Once the axle is free, pull it out of the pedal body.

Step 4: Remove the Bearings

  • The Shimano SM-SH11 pedal typically features two sealed bearings on either side of the axle. These bearings are usually placed inside the pedal body.
  • Using your needle-nose pliers, carefully extract the old bearings from their respective housings. If they are difficult to remove, a small flathead screwdriver can help pry them out.
  • Inspect the bearings closely for signs of wear such as rust, cracks, or rough spots. These bearings will need to be replaced if they show any signs of deterioration.

Replacing the Bearings

Now that you’ve removed the old bearings, it’s time to install the new ones. Follow these steps for proper bearing replacement.

Step 1: Prepare the New Bearings

  • Before installing the new bearings, apply a thin layer of high-quality bearing grease to each bearing. This will help prevent future corrosion and ensure smooth rotation.
  • Make sure the new bearings are the correct size and type for the Shimano SM-SH11 pedals. Shimano provides compatible replacement bearings, so double-check that they match the specifications of your pedals.

Step 2: Install the New Bearings

  • Gently press the new bearings into place, ensuring they fit snugly into the pedal body’s bearing seats.
  • If necessary, use a small rubber mallet to tap them into position, but take care not to damage the bearing or the pedal body.
  • Ensure that the bearings are seated correctly before moving on to the next step.

Step 3: Reassemble the Pedals

  • Insert the pedal axle back into the pedal body, ensuring it aligns correctly with the new bearings.
  • Secure the axle by tightening the nut or bolt that holds it in place. Use a 10mm spanner wrench to ensure it is tight enough to hold the axle firmly, but be careful not to overtighten and damage any parts.
  • Replace the pedal caps by snapping them back into their positions on both sides of the pedal.

Reinstalling the Pedals

Now that your Shimano SM-SH11 pedals are reassembled with fresh bearings, it’s time to reinstall them on your bike.

Step 1: Attach the Pedals to the Crankset

  • Position the pedals correctly on the crankset, ensuring you attach the left and right pedals to the correct sides.
  • Tighten the pedals using a pedal wrench [paid link] or 8mm Allen wrench [paid link]. Be sure to apply enough torque to keep them securely attached, but avoid over-tightening.

Step 2: Test the Pedals

  • Once the pedals are securely installed, give them a spin by hand to check for smooth movement. There should be no grinding, resistance, or odd noises coming from the pedals.
  • If everything feels good, test the pedals while riding to ensure they perform well and feel secure.

Troubleshooting Common Issues

After servicing the bearings, you might still experience some common pedal issues. Here are a few things to watch out for:

  • Pedals feel stiff or difficult to turn: This can happen if the bearings are improperly installed or over-greased. Double-check the bearing installation and re-grease them lightly if necessary.
  • Pedals make a grinding noise: A grinding sound typically indicates that the bearings were not replaced properly or there is still dirt or debris inside the pedal. Check again for any contamination or damaged bearings.
  • Pedal wobble: If there’s noticeable play or wobbling, it could be a sign that the axle is loose. Make sure the axle is tightened securely inside the pedal body.

Conclusion

Replacing or servicing the bearings in your Shimano SM-SH11 pedals is an excellent way to extend their lifespan and maintain smooth performance. By following this guide, you can perform this maintenance at home without the need for a bike shop visit. Regular servicing of your pedals will ensure they continue to perform at their best, helping you enjoy a smooth and efficient ride every time.