6061 Forged Alloy. Made to O.E.M. specifications. Correct hardness to reduce damage to frame upon impact. Includes mounting bolt. Fits Trek Madone Series 5. Compatibility:. Gary Fisher: Cronus CX Pro – 2012 / Cronus CX Ultimate – 2012 / Cronus CX Ultimate Frameset – 2012 / Ion CX – 2012 / Ion CX Pro – 2012 / Ion CX Pro Frameset – 2012. Trek: 5-series Madone – 2011 / Cronus (Road) – 2010-2011 / Fisher Cronus – 2010-2012 / Fisher Ion – 2010-2012 / Ion (Road) – 2010-2011 / Madone 5 series – 2011 / Madone 6 Series – 2010-2011 / Speed Concept – 2010-2011 / Speed Concept 2 Series – 2011 / Speed Concept 7 Series – 2011 / Speed Concept 9

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