FSA Gamma Drive MegaExo Bottom Bracket - BB-1000
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Product Information
Full details
The FSA Gamma Drive MegaExo Bottom Bracket (BB-1000) is a robust upgrade or replacement component designed for mountain bikers seeking drivetrain reliability and smooth rotation. It is ideal for riders using Gamma Drive MegaExo systems who need a durable interface for their cranksets. While it offers excellent protection against the elements, potential users must verify spindle size, as this unit is specifically engineered for 19mm MegaExo spindles.
All features
| Model Part Number | BB-1000 |
|---|---|
| Brand | FSA |
Extended Product Information
FAQs
Will this fit a 24mm spindle crank?
No, this bottom bracket is specifically designed for 19mm MegaExo spindles.
Can I use this on a road bike?
This unit is designed for mountain bike drivetrains; ensure your road bike frame uses a compatible 68mm or 73mm threaded shell before attempting installation.
Does it come with spacers?
Yes, standard installations typically require spacers depending on whether your shell is 68mm or 73mm wide.
How often should I service the bearings?
The cartridge bearings are sealed and designed for long life, but they should be inspected for play or grinding noises during your routine annual bicycle maintenance.
What tools are required?
You need an FSA-compatible MegaExo external bottom bracket tool.
What is the weight of the BB-1000?
The total weight is approximately 200g.
Troubleshooting
Creaking sound while pedaling
Remove the bottom bracket, clean the frame threads, apply fresh grease to the threads and bearing faces, and reinstall to the correct torque.
Lateral movement or play in the crankset
Verify that the crank bolt is tightened to the recommended torque and confirm that no required spacers are missing for your 68mm or 73mm shell setup.
Difficulty rotating the crank
Ensure the bottom bracket was not overtightened during installation and check that the frame shell was properly faced by a professional technician.
Pros and Cons
Pros
- Durable forged steel and CNC-machined construction
- Effective double o-ring seals for improved longevity
- Compatible with both 68mm and 73mm frame shells
- High-quality oversized bearings for smoother rotation
Cons
- Exclusive to 19mm MegaExo spindle systems
- Requires specific tools for installation and removal
- Not compatible with standard 24mm or 30mm crank spindles
Setup, Compatibility & Care
Compatibility is strictly limited to 19mm MegaExo spindles. Before installation, confirm that your frame shell width is either 68mm or 73mm and that it utilizes a standard threaded interface.
- Clean and lightly grease the threads of the frame's bottom bracket shell.
- Install the non-drive side cup, ensuring it is threaded correctly to avoid cross-threading.
- Slide the center sleeve into place before installing the drive side cup.
- Use a compatible MegaExo bottom bracket tool to tighten the cups to the manufacturer's torque specifications.
- Regularly check for play in the crankset and wipe away excess grime from the exterior seals to prevent long-term wear.