Bicycle Stems Recalled by Ridley Bikes Due to Fall Hazard

The recall involves all 4ZA 31.8 threadless bicycle handlebar stems sold as individual aftermarket components. The stems are black and have the words "4ZA Cycling Performance" painted on the carbon extension between the steerer clamp and handlebar clamp. The recalled stems range in extension lengths from 90mm to 130mm, approximately 3.5 to 5 inches.