Quality Bicycle Products Tyler Denniston discusses the new bottom bracket standards on road bikes and mountain bikes.<br /><br /><br /><img src="http://ll.broadbandsports.com/images/43407_thumb.jpg" alt="Bottom Bracket Standards on Road Bikes and Mountain Bikes" title="Bottom Bracket Standards on Road Bikes and Mountain Bikes" width="150" height="90" alt="Bottom Bracket Standards on Road Bikes and Mountain Bikes"/>
