Yes, I have the GT but the 38 mm. As you can see it is actually measured at 41 mm. It's big. I just want to be sure it's ok on my bike. I read in another post where Trek said they recommended maximum size is 38 mm on the Verve 2016. So I got the 38 mm. Now when I turn sharply it is not a smooth turn. I 'm just wondering if the tire is in fact too big that I could have an accident if I was for example going fast and had to turn.