SRAM recalled about 12,000 Zipp 88 bicycle wheel hubs because the hub flange ring on the front hub can fail, posing a crash and injury hazard.

The company reports two incidents of collapsed front wheels. Both resulted in stitches, bruises and lacerations, plus a concussion in one case.

SRAM has instructed consumers to immediately stop using bicycles equipped with the recalled Zipp 88 front hub and contact SRAM for a free replacement hub.

The hubs were manufactured by Prodigy Group of Mooresville, IN and sold by specialty bicycle retailers nationwide. Front hub sold for about $215; front wheel with the hub sold for about $920; front and rear wheel set sold for about $2,300 and bicycles with the wheel set containing the recalled hub sold for about $5,000 to $12,000. Items were sold between October 2008 and December 2010.