My wife and I just got a gift of (2) Sun electric 3-wheelers, 2 weeks ago.
It was quite a surprise and shock.
It may have been the most incredible gift of my life. A protege/friend of mine for several years, and his family, gave them to us. No occasion, just a recognition of their gratitude of what we had done for them over the years. I was CEO and my lady was CFO of a small, elite software company for 30 years. We helped people blossom. It was a difficult time for me last year when we sold the corporation and I lost my "second family". and the meaning of life.
They were a little concerned we weren't getting out and into enough exercise, as well as not doing enough stuff together.
I thought the debt was in the other direction ! We feel we owe them for making us successful. We really love these people. They have huge hearts. We are trying to honor their gift with lots of riding.
Our bikes are like all trikes I've ridden; they ride fantastic on flat, straight terrain, up or down. The issue with all 3 wheelers is that if you tip them outside in a turn, it's very hard to recover. Like all bikes, you need to lean into a turn, or slow down.
For testing, I tried to sit upright in a tight turn doing about 15 mph, and I was able to lift the inside tire off the ground.
That caused my weight to be thrown outside the curve, not into a curve like you need. If I leaned like I'm supposed to, into the curve, all was well. If I leaned "really hard" into the curve, I could take the outside tire off the ground.
If one of your 2 back tires hit something, it can cause a throwing of your weight to the side very quickly. A 2 wheel bike tends to go straight up. Not so with 3 wheelers.
I don't think a country trail could be safely ridden with a 3 wheeler at anything but SLOW speed. Still, that's better than not going.
I've gotten the hang of it, but my lady may take a few more days.
Prescut