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FSAK-Force Light Stem


Item # FSAD12D

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  • Matte Carbon, 120mm ($228.99)
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Item # FSAD12D

Lighter, stiffer, faster.

For some components, 'lightweight' and 'carbon' can be dirty words. In the early 2000's weight-weenie craze, the peloton suffered under the malleable malfeasance of poorly designed, lightweight cockpits. Well, those days are finally past us, in part, because of pristine designs like the FSA K-Force Light Stem having taught the cycling world a very important lesson—innovate or don't bother. The K-Force Light Stem does just that by using a total carbon and titanium construction that offers up rigidity, style, and massive weight savings.

FSA's K-Force Light Stem features a 100% monocoque carbon fiber body construction. This design achieves an equilibrium between weight-savings and ride quality without sacrificing on either polarity. The K-Force Light provides a stiff and direct platform to the bars, while weighing in around an astoundingly low 150g. And while most weight-shaving stems feel more malleable than rigid, the K-Force's design avoids the wet-noodle-zeitgeist by eliminating any steel or alloy from the stem. You heard that right. The K-Force Light uses only titanium hardware to secure to the steer tube and to attach the carbon faceplate. The FSA K-Force Light Stem is available in four sizes from 100 to 130mm.

  • Carbon stem with titanium hardware for optimal stiffness and lightweight
  • Monocoque carbon body balances lightweight with ride quality
  • Elimitinating steel and alloy parts keeps stiffness at a premium
  • Includes shim to fit 1-1/4in steerer size

Tech Specs
Material[body] carbon, [faceplate] alloy, [hardware] titanium
Length100mm, 110mm, 120mm, 130mm
Rise- 6°
Clamp Diameter31.8mm
Steer Tube Diameter1-1/8in
Bar Attachment4 bolt faceplate
Recommended Useroad cycling, gravel
Manufacturer Warranty2 years

Actual Weight

Matte Carbon, 120mm

Claimed Weight

Claimed weights are provided by the vendor.

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Actual weights are measured in-house by the Competitive Cyclist team.

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What do you think about this product?


>Rating: 5

FSA K Force Light Stem

I've used it several times
True to size
Size Bought
5` 8"
158 lbs

This stem was a replacement for stock Deda stem. I purchased a 100mm. My mechanic had no issues with it. In looking at from the cock pit, it looks as though ii have an integrated handle bar/ stem. Bike looks a little stealthy too. Bike seems to handle better. Highly recommend it.