The Shimano PD-5700[paid link] pedals from the 105 series are known for their dependable engagement, smooth spinning, and long-lasting construction. However, like all clipless pedals, they rely on precision bearings to deliver consistent performance. Over time, these bearings can wear out, leading to rough rotation, noise, or excessive play. Servicing or replacing the bearings restores the pedal’s smoothness and extends its lifespan. This guide explains how to correctly service the bearings in your Shimano PD-5700[paid link] pedals, ensuring they continue to perform at their best.
Tools Required
- 17 mm pedal wrench[paid link] or hex key (depending on crank type)
- Shimano TL-PD63 or compatible pedal axle tool
- 10 mm and 7 mm sockets or open-end wrenches
- Grease (Shimano Dura-Ace or equivalent)
- Bearing balls (3/32” or factory-specified size)
- Torque wrench[paid link] (optional, for reinstalling)
- Degreaser and clean rags
Understanding the Shimano PD-5700 Bearing System
The PD-5700 pedals use a cup-and-cone bearing system, similar to many of Shimano’s higher-end models. This design provides low friction and allows precise adjustment of bearing preload. Each pedal axle houses a series of ball bearings that sit between a fixed cup and a movable cone. Over time, dirt, moisture, and worn grease degrade bearing performance, leading to roughness or play. Regular service—every 6,000–8,000 km depending on riding conditions—prevents premature wear.
Removing the Pedals
Before servicing, remove the pedals from the crank arms. Turn the right pedal counterclockwise and the left pedal clockwise to loosen. Always support the crank arm firmly to prevent stripping threads. Wipe off excess dirt around the spindle to avoid contamination when the axle is removed.
Disassembling the Pedal Axle Assembly
- Secure the pedal in a soft-jawed vice to avoid scratching the body.
- Using the Shimano TL-PD63 tool, unscrew the plastic dust cap at the back of the pedal. Turn counterclockwise to remove.
- Once the cap is removed, you’ll expose the locknut and cone. Hold the 7 mm cone in place while loosening the 10 mm locknut.
- Carefully unscrew the cone and slide the entire spindle assembly out from the pedal body.
- Keep the ball bearings in a safe place. Shimano typically uses 12 bearings per side, so ensure you account for all of them.
It’s best to perform the disassembly over a clean tray to prevent losing small parts.
Cleaning and Inspection
Degrease all parts thoroughly, including the spindle, cone, and bearing races. Dry them completely before inspection. Examine the bearing surfaces for pitting, discoloration, or grooves. Minor wear can be polished with a fine cloth, but deep damage indicates replacement is necessary. The pedal body’s cup should be smooth and reflective; if it’s rough, the pedal may need to be replaced rather than serviced.
Repacking and Bearing Replacement
When reinstalling, use new 3/32” steel ball bearings if the originals show wear or corrosion. Apply a thin layer of fresh grease evenly inside the bearing cups on both sides of the pedal. Place the new bearings into the grease one by one, ensuring even spacing.
Next, insert the cleaned axle assembly carefully back into the pedal body. Thread the cone onto the axle until it lightly seats against the bearings, then tighten the locknut while holding the cone steady. The goal is to remove any side play while maintaining smooth, free rotation.
Setting the Correct Bearing Preload
Proper bearing preload is critical for long-term durability. The pedal should rotate freely but not wobble. To test, hold the axle between your fingers and spin it. If it feels rough or has play, readjust the cone slightly tighter. If it feels tight or notchy, back off the cone a fraction. Small adjustments make a big difference in Shimano’s cup-and-cone systems, so work patiently.
After adjustment, reinstall the dust cap using the TL-PD63 tool, ensuring it’s snug but not overtightened.
Reinstalling the Pedals
Reapply grease to the pedal threads to prevent corrosion. Thread the pedals back into the crank arms—right side clockwise, left side counterclockwise. Tighten to approximately 35–40 Nm using a torque wrench[paid link] for a secure fit.
Spin each pedal by hand to confirm smoothness. If you notice tightness or grinding, revisit the bearing adjustment process before riding.
Maintenance Interval and Longevity Tips
Regular cleaning and greasing every few thousand kilometers can extend the lifespan of your PD-5700 pedals dramatically. Avoid power washing or immersing them in water, as this can force moisture past the seals. After rainy rides, wipe down the pedal body and apply a small drop of light oil to the spindle area to help repel moisture.
Store your bike indoors when possible, and periodically check for play by wiggling the pedal body laterally. Any side movement indicates it’s time for a bearing adjustment or service.
Troubleshooting Bearing Problems
- Rough Rotation: Usually caused by contaminated or dry bearings. Re-grease or replace the ball bearings.
- Excessive Play: The cone may have loosened. Readjust preload and recheck locknut tightness.
- Creaking or Clicking: Check for insufficient lubrication or worn races. Inspect thoroughly during service.
- Uneven Resistance: Could indicate pitted bearing surfaces or a bent axle. Replacement is advised if the problem persists.
Comparison: PD-5700 vs. PD-5800 Bearing Design
While the PD-5700 uses a traditional cup-and-cone bearing system, the newer PD-5800 incorporates improved seals and grease retention for longer service intervals. However, the PD-5700’s design allows easier home servicing, making it ideal for riders who prefer self-maintenance over replacement. When properly adjusted, the PD-5700 can perform as smoothly as higher-end models like the Ultegra PD-6700.
Final Testing and Quality Check
After reinstallation, spin both pedals and listen for noise. They should rotate freely without any grinding or tight spots. Check for lateral play again after your first short ride. Minor settling may occur, so a quick readjustment can ensure optimal smoothness.
Regular bearing maintenance ensures your Shimano PD-5700 pedals continue delivering efficient power transfer and reliable performance for years. Consistent attention to lubrication, preload, and cleanliness will keep them running as smoothly as when they were new.