I found these videos with the tests of these 2 GT'S.
The videos are divided, they are two of each, but I had to have a certain patience to the commercials... The Europeans only talk good things about the bikes !
Marathon Expert : http://www.bikezona.tv/index.php?idpelicula=1152
Carbon Force : http://www.bikezona.tv/index.php?idpelicula=1035
Obs: This in Spanish language!
Mtbr's 2016 Winter Biking GearReviews and Roundups
Results 1 to 3 of 3