FSA Afterburner Crankset
Best durable upgrade for cross country and trail mountain bikers.
A reliable, lightweight option for mountain riders looking to upgrade their drivetrain. The modular design offers versatility for different setups, while the hollow-forged construction balances strength and weight for efficient power transfer on the trail.
$99.97
More Afterburner options
Who it's for
- Mountain bikers seeking a future-proof setup for different frame configurations
- Aggressive trail riders who prioritize pedaling efficiency and structural rigidity
- Cross-country racers needing dependable performance without a chain guide
Who should skip it
- Weight-conscious climbers looking to minimize every gram on their bike
- Home mechanics who prefer using universal tools for bike repairs
- Riders who want their components to maintain a pristine aesthetic
Performance breakdown
Power Transfer Efficiency
The 30mm chromoly spindle ensures minimal flex during aggressive climbing efforts.
Weight-to-Strength Ratio
Hollow-forged aluminum keeps the build light without sacrificing trail-ready durability.
Shifting Precision
CNC-machined chainrings deliver crisp, reliable gear changes under load.
Configuration Versatility
Modular spider design allows for quick, easy drivetrain customization.
Drivetrain Compatibility
Seamlessly integrates with modern 11 and 12-speed mountain bike setups.
Finish Durability
Bead-blasted surface resists scuffs and maintains a professional aesthetic.
Key Specs
Crank Arm Length
170 mm
Material
Aluminum 7050, Aluminum 7075, Chromoly
Weight
760 grams
Spindle Diameter
30 mm
Number of Chainrings
2
Chainring Teeth
22T, 36T
Drivetrain Speed Compatibility
11-speed, 12-speed
Bolt Circle Diameter
96 mm
Bottom Bracket Interface Type
BB392EVO
Know before you buy
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Ask Metto anything about the FSA Afterburner Crankset before you decide.