The TIME MX 4 [paid link] pedals are known for their lightweight composite body, self-cleaning ATAC mechanism, and reliable engagement under muddy or dusty trail conditions. However, over time, riders may notice a “loose” feeling while pedaling. This can stem from bearing wear, tension misadjustment, or improper installation. Understanding the causes and applying precise mechanical adjustments can restore the solid, responsive feel that TIME pedals are famous for.
Understanding the TIME MX 4 Pedal Design
The TIME MX 4 [paid link] uses the ATAC (Auto Tension Adjustment Concept) retention system. This design provides consistent engagement and disengagement without requiring frequent tension tuning. The spindle assembly rotates on a combination of needle and cartridge bearings, designed to balance durability with smooth operation.
A perceived “looseness” typically doesn’t originate from the ATAC spring tension itself but rather from bearing play, axle wear, or improper pedal installation torque. Because the MX 4 has a composite body rather than an aluminum or carbon one, wear can manifest more subtly through side-to-side movement or reduced pedal stiffness.
Diagnosing a Loose Pedal Feel
Before assuming component failure, it’s essential to pinpoint the source of the looseness.
1. Check for axle play:
Spin the pedal by hand while holding the crank arm. If you feel side-to-side movement at the pedal body, the bearings or bushings likely need servicing or replacement.
2. Inspect cleat engagement:
Worn cleats can create a rocking sensation that mimics pedal looseness. Examine the ATAC cleats [paid link] for rounded edges or thinning metal at the contact points.
3. Confirm crank arm torque:
Loose pedal threads can create rotational slop. The TIME MX 4 should be torqued to approximately 30–35 Nm. Check for proper thread engagement and clean both crank and pedal threads before reinstalling.
4. Evaluate bearing smoothness:
Rough or gritty bearing rotation means contaminants have entered the pedal body. This can quickly lead to increased play if not serviced.
Servicing the TIME MX 4 Bearings
If bearing play is detected, servicing is straightforward with the right tools and care.
Tools Required
- 8 mm hex key
- 6 mm hex key
- Small flat screwdriver
- Torque wrench [paid link]
- Replacement bearing kit (specific to TIME MX 4)
- Light waterproof grease
Procedure
Remove the pedal from the crank arm using an 8 mm hex key. Insert a 6 mm key into the opposite end to hold the spindle in place if necessary. Once removed, carefully pry off the dust cap using a small flat screwdriver. Unscrew the spindle from the body by turning counterclockwise.
Inspect the bearings and bushing for wear or corrosion. Replace both components if the pedal has significant mileage or visible scoring on the axle. Clean the pedal internals with a lint-free cloth, apply a thin layer of grease, and reassemble the spindle. Ensure that the dust cap seats securely to prevent dirt ingress.
Reinstall the pedals, applying a small amount of grease to the threads before torquing to specification. Spin each pedal to confirm smooth rotation without lateral play.
Adjusting Cleat Tension and Engagement
Although the TIME MX 4’s ATAC system is self-tensioning, the engagement feel can be influenced by cleat orientation. TIME cleats feature two installation positions—13° and 17° of release angle. If the pedal feels loose during engagement, rotating the cleats to the alternative orientation can improve retention.
Also, ensure that both cleats are installed symmetrically and at the same rotational angle. Misalignment between left and right shoes can create uneven pressure that feels like pedal play, especially under high torque pedaling.
Preventing Future Looseness
Routine preventive maintenance is key to preserving the solid feel of your MX 4 pedals. After every 1,000–1,500 km of riding—especially in wet or muddy conditions—remove the pedals, clean the threads, and inspect for play.
Re-grease the spindle bearings twice per season or more often for year-round riders. Avoid using pressure washers directly on the pedals, as this can force water past the seals and accelerate bearing wear.
If you frequently ride in muddy terrain, consider replacing the pedal seals annually to maintain bearing protection. Using a high-quality waterproof grease also helps extend the lifespan of the internal components.
Customization and Performance Optimization
To achieve maximum stiffness and feel, some riders opt to replace the stock composite MX 4 body with the MX 6 [paid link] or MX 8 [paid link] aluminum versions, which share similar internals but offer improved rigidity. However, for most riders, the MX 4 delivers optimal balance between weight and durability when maintained correctly.
Another simple performance upgrade involves switching to fresh ATAC cleats [paid link]. New cleats restore tight engagement, reduce lateral rocking, and improve the sense of direct power transfer.
Common Mistakes to Avoid
Many cases of “loose” pedal feel arise from improper installation or lack of maintenance rather than design flaws. Avoid these common errors:
- Over-tightening or under-tightening pedal threads
- Ignoring bearing service intervals
- Using dry threads during installation
- Failing to replace worn cleats promptly
- Using non-TIME compatible cleats or adapters
By addressing these factors early, you can maintain consistent pedal engagement and maximize the performance life of your MX 4s.
Final Thoughts
A loose-feeling TIME MX 4 pedal is not a sign of poor design but rather an indicator of normal wear or insufficient servicing. Regular bearing maintenance, correct installation torque, and timely cleat replacement will restore the pedal’s precise engagement and stable platform. With proper care, the MX 4 can deliver thousands of reliable kilometers of smooth, confident riding.