Trek Bicycle Corporation of Waterloo, WI is recalling 27,000 bicycles because they use a seat post clamp that can break and pose a fall hazard, the U.S. Consumer Product Safety Commission and Health Canada announced.


Trek has received four reports of incidents with one injury involving a broken tooth and lip injury. The bicycles affected by this recall include the following 2012 models: Trek 7.2 FX, 7.3 FX, 7.4 FX, AND 7.5 FX; District, and 9th District bicycle models: WSD, Livestrong and Disc models.


The bikes were manufactured in China and sold at specialty bicycle retailers nationwide between May 2011 and September 2011 for between $550 and $1,100.