If you own a 2011, 2012, or 2013 Trek bicycle there are some models that have the SR Suntour suspension fork on which the fork dropouts can break. The fork is model NRX.
Safety Recall Notice: http://www.bicycleretailer.com/sites...ForkNotice.pdf
More Information: http://www.bicycleretailer.com/recal...l#.U6zmJxYvtFI
My 2013 8.5 DS is effected by the recall, calling my dealer tomorrow.