Genuine Trek part
Please use the Trek Gear Hanger Identification chart to help identify the correct gear hanger for your bicycle.
Please note, does not include fixing nut and bolt (Use parts W990121 and W990129)
Fits the following models:
2011 Trek 4-series Madone
2010 Trek 4-series Madone
2010 Trek 5-series Madone
2009 Trek 5 and 6-series Madone