Product: Marin Mountain Bikes. Issue: The bottom bracket on some of these bikes can break during use, causing the rider to lose control, posing fall and crash hazards to the user. What to do: Consumers should immediately stop using the recalled bicycle and contact Marin Mountain Bikes to confirm whether their bike requires a replacement. Affected products What you should do Joint recall with Health Canada, the United States Consumer Product Safety Commission (US CPSC) and Marin Canada, Inc.