ACS Crossfire External BB Set
Best reliable component for consistent and smooth cycling performance.
A robust and reliable external bottom bracket designed for smooth power transfer. Its precision sealed bearings and durable aluminum construction make it a dependable choice for standard threaded frames.
$54.02
at
The Bike Center (bikecenterstl)
More Crossfire options
Who it's for
- Aggressive riders seeking long-lasting, reliable drivetrain components.
- Performance-oriented cyclists prioritizing efficient power delivery.
- Home mechanics valuing straightforward installation and maintenance procedures.
Who should skip it
- Riders frequently encountering wet, muddy, or dusty environments.
- Cyclists sensitive to drivetrain noise and seeking silent operation.
- Buyers with older frames or non-standard crankset configurations.
Performance breakdown
Structural Rigidity
Forged aluminum construction provides a stiff, reliable platform for power transfer.
Bearing Longevity
Sealed design effectively keeps grit and moisture away from internal components.
Installation Simplicity
Standard threaded interface makes swapping or upgrading a straightforward workshop task.
Compatibility Range
Broad support for common 24mm spindle cranksets covers most standard builds.
Weight Efficiency
Aluminum machining balances necessary durability with a competitive, lightweight profile.
Maintenance Ease
Non-serviceable bearings mean simple replacement rather than complex, time-consuming overhauls.
Key Specs
Material
Aluminum
Bearing Type
Sealed
Bottom Bracket Standard
BSA Threaded
Spindle Diameter
24 mm
Spindle Interface Type
Shimano Hollowtech II
Shell Width
73 mm
Shell Diameter
34.8 mm
Intended Use
Cycling
Water Resistant
Yes
Serviceable Bearings
No
Know before you buy
Still have a question?
Ask Metto anything about the ACS Crossfire External BB Set before you decide.
