The TIME MX 4 [paid link] pedals are a popular choice among gravel and mountain bike riders who appreciate a reliable clipless mechanism and low-maintenance design. However, like any mechanical component, the pedal bearings require servicing or replacement over time to maintain smooth rotation and longevity. This detailed guide explains how to replace and service the bearings in your TIME MX 4 [paid link] pedals safely and effectively.
Tools Required
- 8 mm hex wrench
- Small flat-head screwdriver
- Bearing puller or thin punch
- Bearing press [paid link] or deep socket of appropriate size
- Grease (lithium-based or high-load bike bearing grease)
- Clean cloths or shop towels
- Torque wrench [paid link]
Understanding the TIME MX 4 Pedal Bearing System
The TIME MX 4 pedals use a dual-bearing setup consisting of one sealed cartridge bearing and one plain bush on each pedal axle. The cartridge bearing handles radial loads, while the inner bush supports the axial forces closer to the crank arm. Over time, these components can wear down, leading to rough pedal rotation or side-to-side play.
Regular maintenance not only ensures smoother engagement but also prevents long-term axle or pedal body damage. The sealed cartridge bearing is replaceable, and the bush can be lubricated or replaced if necessary.
Removing the Pedal Axle Assembly
Begin by removing the pedal from the crank using an 8 mm hex wrench. Turn counterclockwise on the right side and clockwise on the left, as the threads are opposite.
Once removed, locate the end cap on the outer side of the pedal body. Use a small flat-head screwdriver to gently pry the cap off without damaging the edges. Under the cap, you’ll find a retaining nut or bolt that secures the axle.
Hold the pedal body firmly and use the appropriate hex key or socket to loosen this retaining nut. Once removed, carefully slide the axle assembly out of the pedal body. Be cautious not to lose any small washers or seals.
Inspecting Bearings and Bushings
With the axle removed, inspect the inner bushing inside the pedal body for wear or deformation. It should appear smooth and round. Any scoring or discoloration indicates excessive friction and potential replacement.
Next, check the cartridge bearing at the outer edge. Spin it with your fingers — if you feel grinding, resistance, or looseness, it’s time to replace it. Also, check for dirt contamination, as it can reduce bearing life significantly.
Clean the pedal body and axle with a degreaser or alcohol, ensuring that all dirt and debris are removed before reassembly.
Replacing the Cartridge Bearing
If the bearing needs replacement, use a thin punch or bearing puller to drive the old bearing out from the inner side of the pedal body. Apply light, even pressure to avoid damaging the housing.
Once removed, clean the bearing seat and lightly grease it to aid installation. Press the new cartridge bearing into place using a bearing press [paid link] or a deep socket that matches the bearing’s outer diameter. Press slowly and evenly until it seats flush with the housing.
Avoid using excessive force, as this can distort the bearing or housing alignment.
Servicing or Replacing the Inner Bushing
For the inner bushing, lubrication is often sufficient. Apply a small amount of high-load grease inside the bushing and rotate the axle through it to distribute the lubricant evenly.
If the bushing is excessively worn, it can be replaced using a specialized bushing removal tool. Carefully extract the old bushing and press in the new one, ensuring proper alignment. Grease the new bushing before inserting the axle.
Reassembling the Pedal
After the bearing and bushing are serviced or replaced, reinsert the axle assembly through the pedal body. Ensure that the axle slides smoothly without resistance.
Replace the retaining nut or bolt, tightening it to the manufacturer’s recommended torque (typically around 6–8 Nm). Verify that the axle spins freely without lateral play.
Finally, reinstall the end cap by pressing it firmly into place. Wipe away any excess grease and reinstall the pedal onto the crank, tightening it to 40 Nm with the 8 mm hex wrench.
Post-Service Testing and Adjustment
Once both pedals are reinstalled, spin the cranks to check for smooth rotation and even resistance between pedals. Engage and disengage your cleats a few times to confirm proper function.
If you notice uneven motion or grinding, recheck the bearing seating and verify that the retaining nut is not over-tightened. A properly serviced TIME MX 4 pedal should rotate smoothly and quietly with no detectable side play.
Maintenance Schedule and Best Practices
To maintain the performance of your TIME MX 4 pedals:
- Service the bearings every 3,000–5,000 km or after heavy, wet, or muddy rides.
- Keep the pedals clean and dry after each ride.
- Re-grease the axle threads before reinstalling to prevent corrosion.
- Inspect pedal play regularly—any looseness typically signals early bearing wear.
Following this maintenance routine will extend pedal life and preserve their smooth engagement and stability.
Troubleshooting Bearing-Related Issues
Grinding noise or rough feel: Indicates dirt contamination or bearing wear. Replace the cartridge bearing.
Side-to-side play: Suggests bushing wear or a loose retaining nut. Tighten to spec or replace the bushing.
Sticky rotation: Usually due to dried grease or internal corrosion. Disassemble, clean, and re-lubricate all internal parts.
Regular inspection allows you to detect early signs of wear and avoid costly replacements later.
Final Thoughts
Servicing the bearings in your TIME MX 4 pedals is a straightforward task when done with patience and the right tools. Replacing worn bearings and lubricating the bushings restores smooth pedal rotation, enhances power transfer, and prevents premature component wear.
With periodic maintenance, the TIME MX 4 pedals will continue to deliver dependable performance for thousands of kilometers of riding.