After giving my son my Specialized bike a couple years ago, my wife and I decided an eBike could be the ticket for low impact exercise with the rigor of hills replaced by electric assistance to create a new joy of useful recreation. We ended up with a Lectric (folding XP Step Thru 3.0 for me and a Lectric e-Trike for her and love our choices.
With all of that said, I rode the bike with the 1800 wheel for a few hundred miles - on mild trails, nothing extreme - without issue.