Chris King ThreadFit 24 Bottom Bracket - AAB1
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Product Information
Full details
The Chris King ThreadFit 24 bottom bracket is designed for serious cyclists who demand a durable, silent, and serviceable interface between their frame and 24mm spindle cranks. Engineered in Portland, Oregon, it ensures your drivetrain spins with minimal friction and maximum longevity thanks to legendary in-house bearings, though it requires specific conversion kits for broad crank compatibility and periodic maintenance for peak performance.
All features
| Model Part Number | AAB1 |
|---|---|
| Brand | Chris King |
Extended Product Information
FAQs
What crank spindle size does this bottom bracket support?
The ThreadFit 24 is specifically designed for 24mm diameter spindles.
Do I need special tools to service this bottom bracket?
Yes, you will need a grease injection tool for regular maintenance and appropriate wrenches for the initial installation.
Can I use this on both road and mountain bikes?
Yes, as long as your frame shell is compatible and you have the correct conversion kit for your specific crankset.
Where is the Chris King ThreadFit 24 manufactured?
Every unit is engineered, manufactured, and assembled in Portland, Oregon, USA.
How often should I inject grease?
Maintenance intervals depend on riding conditions, but it is recommended to perform this during your routine bike tune-ups or after riding in extremely wet or muddy environments.
Troubleshooting
Creaking or clicking noises during pedaling
Check that the bottom bracket cups are torqued to specifications and verify that the crank spindle interfaces are clean and properly greased.
Increased friction or 'gritty' feeling
Use the integrated grease injection system to flush the bearings with fresh grease. If the issue persists, inspect for bearing wear or contamination.
Pros and Cons
Pros
- Exceptionally smooth and durable bearing performance
- Easy to maintain with integrated grease injection
- High-quality construction manufactured in the USA
- Silent operation under high-torque conditions
Cons
- Requires specific conversion kits for different crank standards
- Higher initial investment compared to stock bottom brackets
- Requires specific tools for correct installation and service
Setup, Compatibility & Care
Installation of the ThreadFit 24 should be performed using compatible bottom bracket tools to ensure the cups are seated correctly within the frame shell. Compatibility is determined by the frame's bottom bracket standard and the specific 24mm crankset being used; ensure you have identified and purchased the necessary conversion kit for your specific setup. For maintenance, use the integrated grease injection system periodically to flush out old lubricant and contaminants. Always follow the manufacturer’s torque specifications to prevent damage to the threads and housing.