Reported risk: The SW Carbon Stem with Magnesium Faceplate is black with the words "S-Works" and "Magnesium Faceplate" printed on it. The stems were included as original equipment on the following 2006 bicycles models: S-Works Tarmac, Tarmac Pro, S-Works Roubaix, Roubaix Pro, Allez Pro and S-Works Transition. It was also sold as an aftermarket item under the name S-Works Advanced Composite Mag Road Stem. Hazards: The bicycle's stem has a magnesium faceplate that holds the handlebar in place. The faceplates on the recalled stems can crack, allowing the handlebar to break off the bicycle, posing a serious fall hazard.
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ProductGuru indexes recall and safety-alert records from ~30 public agency registries. We are not lawyers, regulators or product-safety consultants. This page restates what the named agency published; consult the primary source above (or qualified counsel in your jurisdiction) before any commercial, medical or safety decision.