Cannondale last week announced the recall of about 23,000 bikes in the United States and Canada.

The affected models have an “OPI stem/steering tube assembly that can fail, posing a risk of injury from a fall,” according to the Consumer Product Safety Commission.

This recall involves all model years 2011 through 2015 Flash, FSi, F-4, F-5, F-29, Lexi, RZ, Scalpel and Trigger Cannondale mountain bikes. These models that have the OPI stem/steering tube assemblies are marked with “OPI” printed diagonally across the stem/steering tube in black letters.

The bikes were sold at Cannondale dealers nationwide from July 2010 to July 2015 for between $2,000 and $10,000.

The recall was instituted voluntarily by Cannondale after testing revealed the potential failure.

“Testing has shown that the nature of the connection between the base of the OPI stem and the top of the steering tube results in a reduced fatigue life,” reported the brand. “This could lead to fork failure, with risk of a serious accident or injury.”

Consumers should immediately stop using the recalled bicycle and take it to the nearest authorized Cannondale dealer for a free repair. Cannondale dealers will fit a locking reinforcement wedge assembly inside the OPI stem/steering tube and replace the clamp bolts.

For more information, contact Cycling Sports Group at 800-BIKE-USA (800-245-3872) from 9 a.m. to 6 p.m. ET Monday through Friday, by email at custserve@cyclingsportsgroup.com or online at www.cannondale.com and click on “Recalls” under the Recalls & Safety link at the bottom of the page.