FSA Afterburner Crankset
FSA

FSA Afterburner Crankset

4.4

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

Out of stock
Crank Arm Length Mm 170
170
175
Drivetrain Speed Compatibility 11-Speed, 12-Speed
11-Speed
11-Speed, 12-Speed
Bottom Bracket Interface Type BB392EVO
392EVO
BB392EVO
Number Of Chainrings 2
1
2

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.

Excellent

Weight-to-Strength Ratio

Hollow-forged aluminum keeps the build light without sacrificing trail-ready durability.

Excellent

Shifting Precision

CNC-machined chainrings deliver crisp, reliable gear changes under load.

Excellent

Configuration Versatility

Modular spider design allows for quick, easy drivetrain customization.

Excellent

Drivetrain Compatibility

Seamlessly integrates with modern 11 and 12-speed mountain bike setups.

Excellent

Finish Durability

Bead-blasted surface resists scuffs and maintains a professional aesthetic.

Excellent

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

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FSA Afterburner Crankset

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