New to camper vans

[Weeksi]

Hi. We have just purchased our 1st Cali and are looking forward to a week in Devon and Cornwall soon (1st time away apart from 3 nights in a hire van).
We need to carry 2 electric mountain bikes and have been thinking about either a Thule Easyfold or Thule Velospace XT tower mounted bike racks. What are your experiences with these racks or are there any other recommendations.
Thanks in advance.
Ian