The U.S. Consumer Product Safety Commission, in cooperation with Todson, is recalling Zefal CO2 bicycle tire inflators with a pressurized carbon dioxide cartridge because the pressurized cartridge containing carbon dioxide can forcefully separate from the pump head, posing a risk of injury to the user. The metal cartridge is threaded into the inflator head, which allows for the controlled release of carbon dioxide into the bicycle inner tube. The recalled inflators have “Zefal EZ+ CO2 inflator” printed on the front of the package. Model number 5602 and UPC number 798661556020 is printed on the back. The product was sold exclusively through Walmart stores nationwide from August 2009 through November 2009 for about $15.

Riders should immediately stop using the inflators and return them to Walmart for a full refund. For additional information, contact Todson Inc. at (800) 213- 4561 between 9 a.m. and 5 p.m. ET Monday through Friday, or visit the firm’s Web site.