Peloton is recalling 2 million exercise bicycles over safety concerns, the second major recall the fitness company has faced.

According to a release Thursday by the Consumer Product Safety Commission, the bikes’ seat post can break during use, posing fall and injury hazards to a user.

Peloton has already received 35 reports of the seat post breaking and detaching from the bike during use, the CPSC said, including 13 reports of injuries that include a fractured wrist, lacerations and bruises.

Consumers should immediately stop using the recalled exercise bikes and contact Peloton for a free repair, the release states. Peloton is offering consumers a free seat post that can be self-installed.

This is not the first time Peloton has faced a widespread recall. In May 2021, it was forced to recall all of its treadmills after a child’s death.

Peloton’s stock was down more than 7% following Thursday’s announcement.