Fits some Trek Compatibility: Gary Fisher: Ion CX - 2013 / Road - 2009 Lemond: AC/DC - 2006 / Aeroluminum - 2001 / Aeroluminum - 1998-1999 / Aluminum - 2006 / Dual Zone (triathlon) - 2006-2007 Trek: 1 and 2-series Road - 2009 / 1-series Road - 2011 / 1.2 / 1.5 - 2008 / 2 Series Road - 2010-2012 / 2.1 Apex - 2012 / 2000/2200/2300 Road - 2002-2005 / 3rd Dimension Road - 2004-2008 / 7.7 FX - 2013 / Aluminum Road (welded) - 2001-2008 / Aluminum Road and Cross (most) - 2001-2011 / Equinox 9 / #5UPC/EAN/GTIN: 836572000434