Straight Crossbars are applications that are not running an over the bar steering stabilizer.
Damper Crossbars are for riders that are using an over the bar steering stabilizer.
Long crossbars are 10" long from end to end.
Short crossbars are 9" long from end to end.
Gen 1: Bars manufactured previous to August 2010.
Gen 2: Bars manufactured between August 2010 and March 2014, can be identified by the "FB Technology" marked on the center section at the bar alignment grid.
Gen 3: Bars manufactured from April 2014 on, can be identified by the "FB3 Technology" marked on the center section at the bar alignment grid.