Rim Width

Hi, I am looking at purchasing a wheelset for my TT bike (Avanti Chrono Evo II). I am still deciding between the classic clincher combo Epic 60-88 or the new Epic 7.10. However, the Epic 5.6 sounds a great choice too… tough decision I’m trying to make.
The Epic 60-88 stands out in my mind… I read it has wider rims & this comment has put doubt in my mind whether the rims would fit on my bike. Has anyone had experience will this wheelset they can share? Cheers.