6061 Forged Alloy Made to O.E.M. specifications Correct hardness to reduce damage to frame upon impact Includes mounting bolt Fits some Cannondale Fits some Cannondale Compatibility: Cannondale: Claymore - 2011-2012 / Claymore 1 - 2013 / Claymore 2 - 2013 / FAT CAAD 1, 2 - 2016-2017 / Jekyll - 2011-2012 / Jekyll 3 - 2013 / Jekyll 4 - 2013 / Jekyll Alloy - 2011-2013 / Jekyll Alloy 27.5 - 2014-2017 / Jekyll Carbon 1 - 2013 / Jekyll Carbon 2 - 2013 / Jekyll Carbon 27.5 - 2014-2017