My husband and I bought our Literiders a few falls ago and absolutely love them. There wasn’t much to do to put them together when they arrived, but I would recommend taking them to a bike shop to have everything tightened and adjusted properly, right at the start. We had a malfunctioning pedal and Kingbull customer service was great! They sent a replacement right away. We ride with friends pretty often and our bikes end up being the envy of others, even those that cost more than twice as much. The gears AND throttle make every ride a breeze and so much fun. We’ve been able to fold them up, put them in the back of our SUV and take them anywhere. The battery life is also good. I’m about 160 Lbs and my husband is about 195 Lbs. if we do a 32 mile ride, I’ll get back with little drop in battery level, while his level will be pretty low. I know rider weight is a factor in battery life, as well as how much you use e-assist, but we feel that’s good range for the batteries. We’re in our 60”s and 70’s and love the easy step in and out of this style of bike. Would definitely recommend this bike and this company.