FSA Chainring Bolt Kit - Black
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Product Information
Full details
The FSA Chainring Bolt Kit is a essential hardware replacement set designed specifically for cyclists maintaining single-ring ebike systems. It provides the necessary structural integrity for power transmission, offering a perfect fit for specific FSA crank configurations. While it offers high-quality durability, users should verify their exact crank model number—specifically the ML138 or ML462—to ensure compatibility before purchase.
All features
| Colour | Black |
|---|---|
| Model Part Number | 390-0054000151 |
| Brand | FSA |
Extended Product Information
FAQs
Can I use these on a double-ring setup?
No, this kit is specifically engineered for single-ring ebike systems.
How many bolts are included in the kit?
The kit includes four bolts, which is the standard requirement for the compatible ML138 and ML462 configurations.
Do I need thread-locking compound?
While not strictly required, a small amount of blue thread-locking compound can be used if you experience issues with bolts backing out due to high vibration.
What is the primary material used?
These bolts are made from high-strength steel designed to handle the high torque output of electric motors.
Does the black finish peel over time?
The black anodized coating is durable and resistant to standard weather conditions and routine cleaning solvents.
Troubleshooting
Bolt is difficult to thread into the crank spider.
Ensure the bolt is perfectly aligned with the threads and not cross-threaded; clean the crank threads with a degreaser first.
Clicking sound while pedaling.
Verify that all four bolts are torqued to the proper specification; loose bolts often cause creaking under pressure.
Pros and Cons
Pros
- High-quality construction ensures long-term reliability
- Specific design prevents chainring movement under high torque
- Covers all four mounting points for single-ring setups
- Corrosion-resistant finish maintains aesthetic appearance
Cons
- Limited compatibility only for ML138 and ML462 systems
- Not suitable for multi-ring cranksets
- Requires specific tools for correct installation
Setup, Compatibility & Care
To install, ensure your crankset is clean and free of debris. Always use a proper hex or Torx tool that matches the bolt head to prevent stripping the threads. It is recommended to apply a light coating of high-quality bike grease to the threads during installation to prevent seizing over time. Compatibility is strictly limited to systems using the ML138 and ML462 specifications, so cross-reference your current crank model number printed on the inside of the crank arm before proceeding. Periodically check that these bolts remain torqued to the manufacturer's recommended specification during your standard safety inspection.