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Afterburner Stem

Afterburner Stem

The FSA Afterburner Stem is a robust and versatile option for mountain bikers tackling aggressive trails. Built from forged aluminum, it offers a strong, lightweight platform for precise steering and durability. Its trail-ready design makes it a dependable choice for riders who demand control and confidence on technical terrain.


  • 90mm length for XC fit
  • ±12° angle for cockpit tuning
  • 3D-forged alloy construction
  • Designed for MTB and trail use
  • 31.8mm clamp
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From $88.00
Afterburner Stem
$88.00
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Description

The FSA Afterburner Stem is a robust and versatile option for mountain bikers tackling aggressive trails. Built from forged aluminum, it offers a strong, lightweight platform for precise steering and durability. Its trail-ready design makes it a dependable choice for riders who demand control and confidence on technical terrain.


  • 90mm length for XC fit
  • ±12° angle for cockpit tuning
  • 3D-forged alloy construction
  • Designed for MTB and trail use
  • 31.8mm clamp
Afterburner Stem | Sierra Bicycle Supply