Federal safety officials have ordered a tiny tire importer to recall as many as 450,000 tires that it bought from a Chinese manufacturer and sold to U.S. distributors.

Foreign Tire Sales Inc., of Union, said an unknown number of the light truck radials it imported since 2002 from Hangzhou Zhongce Rubber Co., of Hangzhou, China, could suffer tread separation, a problem that led to the nation’s largest tire recall in 2000.

FTS said an unknown number of the tires it sold were made without a safety feature, called a gum strip, which helps bind the belts of a tire to each other, the company said in a filing to the National Highway Traffic Safety Administration. Some of the tires had a gum strip about half the 0.6 millimeter width that FTS expected, it said. (AP)