I have an "old" Radmini. It has been pretty trouble free, but I don't ride it much anymore. I have 1400 miles on it. I have replaced the brake pads twice. I took it to a bike shop shortly after I got it and they fixed my assembly job. The 2017 had a different battery and no suspension. If I rode more than 10 miles, I felt beat up, but that might not be a problem now, because they put shocks on the front. I don't like the heavy tank like feel of it, but it is good to ride in the woods on bad roads. A friend bought a 2018 mini and it has a different battery and would get better mileage than mine, but it also had a couple of problems right off that grounded it while parts were shipped for replacement of defective parts. She taped a big wad of padding around the folding joint, because the toggle bruised her leg so her bike no longer folded. That's my review.