The TIME ATAC XC 12 [paid link] pedals are renowned among performance-oriented cyclists for their lightweight carbon body, titanium spindle, and exceptional mud-shedding design. However, even the best pedals can develop stiffness or unwanted noise over time if not correctly maintained. This guide explains, in detail, how to diagnose the root causes of noisy or stiff ATAC XC 12 [paid link] pedals, and how to fix them to restore their smooth, silent performance.
Understanding the ATAC XC 12 Pedal System
The TIME ATAC XC 12 pedal system uses an Auto Tension Adjustment Concept (ATAC) mechanism that provides easy engagement and consistent release tension, ideal for cross-country and gravel riders. The system features:
- A carbon body with integrated stainless-steel engagement bars.
- A titanium spindle with sealed bearings and bushings.
- A self-cleaning spring mechanism that clears mud and debris during engagement.
Because of its precision construction, even small amounts of contamination or wear can cause stiffness or unwanted creaking.
Tools Required
Before diagnosing or repairing the pedals, gather the following tools:
- 8 mm hex wrench
- 15 mm pedal wrench [paid link] (if applicable)
- Torque wrench [paid link]
- Grease (preferably lithium or Teflon-based)
- Needle-nose pliers
- Small brush and degreaser
- Clean lint-free cloth
- Bearing puller or small flathead screwdriver (for advanced servicing)
Diagnosing Noisy ATAC XC 12 Pedals
Noise from your ATAC XC 12 pedals can originate from several sources. Each type of sound—clicking, creaking, or grinding—indicates a different underlying issue.
Pedal-to-Crank Interface
If you hear a rhythmic creak or squeak under high torque, inspect the pedal threads and crank interface. A lack of grease or contamination between the titanium spindle and crank arm can cause micro-movements that generate noise.
Remove each pedal and clean the spindle threads thoroughly. Apply a thin layer of high-quality grease before reinstalling, tightening to 35–40 Nm.
Cleat-to-Pedal Engagement Bars
If noise occurs during clipping in or out, inspect your ATAC cleats [paid link] and engagement bars. Worn cleats or dry metal contact surfaces often cause clicking or squealing. Replace excessively worn cleats and lightly lubricate the bars with a dry-film lubricant to prevent contamination.
Internal Bearings or Bushings
A grinding or rattling sound that persists even when unclipped often indicates worn bearings or dry bushings. Over time, the pedal’s internal lubrication breaks down, allowing contaminants to enter. This condition requires a full bearing service or replacement.
Diagnosing Stiff ATAC XC 12 Pedals
Stiffness in pedal rotation or engagement typically results from contamination or internal wear.
Stiff Rotation Around the Spindle
If the pedal body doesn’t spin freely, the internal cartridge bearings or bushings may be dry or corroded. This happens when seals degrade or the pedal has been submerged repeatedly in water or mud. A full bearing overhaul is required to restore smooth motion.
Stiff Cleat Engagement
If clipping in feels unusually tight, debris inside the ATAC spring mechanism is often the cause. The design self-cleans to an extent, but compacted grit or dried mud can block the retention system. Remove the pedals, soak them briefly in warm soapy water, and clean the engagement area thoroughly using a soft brush. Avoid high-pressure washing, as this can push contaminants into the bearings.
Step-by-Step: Fixing Noisy or Stiff ATAC XC 12 Pedals
1. Remove the Pedals
Use an 8 mm hex wrench on the inside of the crank arm to remove each pedal. Always turn counterclockwise for the right pedal and clockwise for the left.
2. Clean and Inspect
Wipe the pedal body with a lint-free cloth and degreaser. Inspect for visible cracks, excessive wear, or corrosion near the spindle or spring mechanism.
3. Disassemble the Pedal Body
Carefully remove the end cap using needle-nose pliers or a small screwdriver. Slide the spindle out from the pedal body, exposing the bearings and bushings.
4. Clean and Re-Grease
Remove all old grease and contaminants. Apply a fresh, even layer of lithium-based grease to the bearings, spindle, and contact points. Reinsert the spindle carefully, ensuring smooth rotation.
5. Check Bearing Condition
If the pedal still feels rough or gritty after re-greasing, replace the bearings. TIME ATAC XC 12 pedals use sealed cartridge bearings that can be pressed out and replaced easily with a bearing puller.
6. Reassemble and Reinstall
Reinstall the end caps, tighten securely, and apply thread grease before reinstalling the pedals on the crank arms. Torque them to 35–40 Nm for a secure fit.
7. Test Engagement
Clip in and out several times to verify that the ATAC retention mechanism feels consistent and smooth. Spin the pedals by hand to check for free rotation.
Preventive Maintenance for ATAC XC 12 Pedals
Preventing noise and stiffness is easier than fixing it. Regular maintenance ensures longevity and peak performance.
- Clean after every wet ride. Mud and grit can enter the spring mechanism and bushings.
- Re-grease every 2,000–3,000 km. Apply fresh grease to prevent corrosion and maintain lubrication.
- Inspect cleats monthly. Worn or bent cleats can stress the engagement system.
- Avoid pressure washing. It can compromise the bearing seals.
With consistent care, your ATAC XC 12 pedals will maintain their trademark smoothness and lightweight efficiency for years.
Common Symptoms and Quick Fixes
| Symptom | Likely Cause | Solution |
|---|---|---|
| Creaking under load | Dry spindle threads | Clean and apply grease |
| Clicking when clipping in | Worn cleats or dry engagement bars | Replace cleats, apply dry-film lubricant |
| Grinding while spinning | Worn or contaminated bearings | Replace bearings and re-grease |
| Tight engagement | Dirt in ATAC spring mechanism | Clean with mild soap and brush |
| Loose feeling | Bearing play or worn bushings | Tighten or replace internals |
Final Checks
After servicing your TIME ATAC XC 12 pedals, perform a short test ride. Pedals should rotate smoothly, engage cleanly, and remain silent under pressure. If noise returns quickly, recheck torque at the crank and ensure no contamination remains around the cleat interface. Proper maintenance of this high-performance system ensures a long lifespan and consistent pedaling efficiency.