Hi all. First post. My wife and I both bought Jorvik trikes to enjoy here in Portugal. The trikes are ok, but have a few design flaws for our lifestyle. Primarily they are front wheel drive and many of the tracks locally are dirt tracks in hilly terrain . I have had to get off and walk alongside whilst tickling the throttle on many occasions as the front wheel was spinning and offering no traction.To improve this I am pondering fitting a driven wheel to both of the two rear wheels instead of the one useless skipping/sliding front wheel. Has anyone done this or can offer advice?