Built for riders who demand precision and strength on every ride, the FSA Afterburner Lightweight Stem - 0 Degree delivers a perfect balance of lightweight performance and trail-tough durability. Crafted from forged aluminum, this stem offers a rock-solid connection between bars and fork, keeping handling sharp and confident when the trail gets rowdy. Whether climbing technical singletrack or hammering descents, it provides the stiffness and control serious mountain bikers rely on.
With its clean, low-profile design and zero-degree rise, the Afterburner Stem helps riders maintain an aggressive, efficient position without sacrificing comfort or stability. It’s a smart upgrade for anyone who wants dependable steering feel and top-tier performance without adding unnecessary grams.
Forged aluminum construction – Strong, lightweight, and built to handle aggressive trail riding.
0-degree rise – Keeps your cockpit low and stable for precise handling and efficient climbing.
Trail-proven design – Ideal for riders who push their bikes hard on technical terrain.
Lightweight performance – Adds stiffness and control without extra weight.
The FSA Afterburner Lightweight Stem is the kind of component that disappears beneath you—until you realize how much better your bike feels with it installed.
Specifications & Identifiers
Bar Clamp
31.8mm
Color
Black
Defined Color
Black
Length - Stems
40mm
Material
6061-T6 Aluminum
Steerer Tube
1-1/8" Threadless
Stem Angle (deg)
0 Deg
Black - 40mm UPC
840031110862
Black - 40mm MPN
175-0082104050
Tree Fort ID:
333222473889
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