FSA OS-99 K-Force
Best premium upgrade for performance oriented road cyclists.
A high-performance hybrid stem that combines the structural rigidity of forged alloy with the vibration-damping benefits of carbon fiber. Designed for competitive road cyclists, it offers a lightweight, stiff, and visually striking cockpit upgrade.
$89.99
More K-Force options
FSA K-Force Light Stem
$215.00
FSA K-Force Light Stem
$297.00
FSA K-Force Light 2.0
$158.00
FSA K-Force Light Stem
$215.00
FSA K-Force Light Stem
$215.00
FSA K-Force Light Stem
$215.00
FSA K-Force Light Stem
$297.00
FSA K-Force Light Stem
$297.00
FSA K-Force Light 2.0 Stem
$158.00
FSA K-Force Light 2.0 Stem
$182.00
FSA K-Force Light Stem
$297.00
Who it's for
- Competitive cyclists seeking marginal gains in weight
- Racers and performance riders demanding responsive handling
- Enthusiasts who value unique aesthetics and pro-level branding
Who should skip it
- Cyclists on a budget or those not prioritizing elite components
- Riders who prefer readily available and easily replaceable parts
- Recreational cyclists prioritizing comfort over race performance
Performance breakdown
Structural Stiffness
Hybrid alloy-carbon construction delivers exceptional power transfer during aggressive sprints.
Weight Efficiency
Titanium hardware and smart material choices keep mass impressively low.
Vibration Damping
Carbon wrap effectively mutes road buzz for a smoother ride feel.
Build Precision
CNC machining ensures tight tolerances and a secure, reliable cockpit interface.
Aesthetic Appeal
Limited edition finish offers a sophisticated, pro-level look for any build.
Installation Ease
Standard clamping dimensions make for a straightforward, hassle-free component swap.
Key Specs
Stem Length
110mm, 120mm
Stem Rise
±6º
Handlebar clamp size
31.8mm
Steer Tube Clamp size
1-1/8 / 28.6mm
Stem Stack Height
41mm
Weight
134g (110mm)
Material
AL2014 Alloy and Carbon Fiber
Hardware
Titanium bolts
Know before you buy
Still have a question?
Ask Metto anything about the FSA OS-99 K-Force before you decide.
