6061 Forged Alloy. Made to O.E.M. specifications. Correct hardness to reduce damage to frame upon impact. Includes mounting bolt. Fits Cervelo and others. Compatibility:. Bergamont: Many models - 2013. Cervelo: Dual - 2005-2007 / R2.5 - 2005 / R3 - 2008-2010 / R3 SL - 2006-2010 / R3 Team - 2006-2007 / RS - 2008-2010 / S1 - 2009-2011 / S2 - 2009-2011 / S2 - 2012-2014 / S3 - 2009-2010 / SLC SL - 2008 / Soloist - 2007-2008 / Soloist Carbon/Team - 2005-2008. Eddy Merckx: EMX-1 - 2010