Trek Madone 9 Series 56cm H2 Di2 Ultegra Powertap Amp 35/50 G3 Carbon Wheels! Ask questions or for more pictures. Stem is 100mm 7 deg. The item "Trek Madone 9 Series 56cm H2 Di2 Powertap Amp Wheels" is in sale since Thursday, October 17, 2019.This item is in the category "Sporting Goods\Cycling\Bicycles". The seller is "aplum4" and is located in Brodhead, Wisconsin. This item can be shipped to United States.