According to www.cpsc.gov there has been a recall of Specialized 2012 Source Eleven and Source Expert Disc bicycles with Supernova Switchable Dynamo Front Hubs.
It was reported that the set screws in the front hub of the recalled bicycles can loosen and stop the front wheel from turning, posing a fall hazard to consumers.
If you own one of these bikes you can contact the consumer:
Specialized Bicycle Components, Inc. toll-free at 877-808-8154 from 8 a.m. to 4:30 p.m. PT Monday through Friday or online at www.specialized.com and click on “Safety/Recalls” at the bottom of the page for more information.
Recall information is provided as a public service by avid cyclist and Florida bicycle lawyer Jim Dodson. If you've experienced a bicycle component failure and have questions about a potential claim against a bicycle manufacturer, call 888-207-0905 and get your questions answered.