Just installed a 7900 groupset on a 2004 trek madone 5.9 that had a 7800 before. Wheelset is a wh-9000 that is 11 speed but has a 10 speed cassette with a
Trek Madone 5.9 H2 Compact Road Bike - 2014, 58c | The Pro's Closet
Trek Madone 5.9 DI2 used in 58 cm | buycycle
Amazon.com : Derailleur Hanger fit for Trek Boone Crockett Domane Emonda Lexa Speed Concept 176 Black : Sports & Outdoors