Full Speed Ahead MegaExo O-Ring
Best essential component for cyclists performing their own drivetrain maintenance.
This unassuming rubber ring is the difference between a smooth drivetrain and a gritty, premature bearing failure. It’s a tiny, inexpensive insurance policy for your bottom bracket that keeps contaminants out, though it requires a bit of patience and precision to install correctly during your next overhaul.
$53.00
at
Seattle Electric Bike
More MegaExo options
FSA BB-6200 Bottom Bracket
$48.00
Full Speed Ahead Road Bottom Bracket
$40.00
Full Speed Ahead BB-PF4002 MegaExo Bottom Bracket
$55.00
Full Speed Ahead MegaExo Steel Road Bottom Bracket
$45.00
Full Speed Ahead MegaExo Omega BB-4000
$41.00
Full Speed Ahead Road Stainless Bottom Bracket
$53.00
Full Speed Ahead MegaExo Bottom Bracket
$40.00
Full Speed Ahead MegaExo Bottom Bracket
$48.00
Full Speed Ahead Road Steel PressFit 30 Bottom Bracket
$53.00
FSA MegaExo Omega Bottom Bracket
$41.19
Who it's for
- Cyclists riding in wet or muddy conditions frequently
- Bike owners seeking exact factory-spec replacement components
- Budget-conscious riders performing their own routine bike maintenance
Who should skip it
- Riders using non-FSA or different bottom bracket standards
- Inexperienced home mechanics who lack specialized bicycle assembly tools
- Time-pressed cyclists who need immediate repairs for their drivetrain
Performance breakdown
Seal Integrity
Creates a precise barrier against grit and moisture ingress.
Installation Simplicity
Straightforward fitment that requires minimal mechanical expertise to seat correctly.
Material Durability
Resilient rubber compound withstands constant rotation and environmental exposure.
System Compatibility
Perfectly engineered for MegaExo bottom bracket tolerances and dimensions.
Maintenance Value
An inexpensive way to extend the lifespan of expensive bearing assemblies.
Component Precision
Exact sizing ensures zero drag while maintaining a tight seal.
Key Specs
Part Number
MS149
Compatibility
MegaExo bottom bracket systems
Quantity
1
Know before you buy
Still have a question?
Ask Metto anything about the Full Speed Ahead MegaExo O-Ring before you decide.
