AOVOPRO BK520 Adult Electric Bicycles, 350W 26" Electric Mountain Bicycle, 48V Battery, 22Mph Electric Mountain Bike, Adjustable 7 Speed E-Bikes for Adults UL2849

I liked that the bike arrived the next day, as advertised. I also prioritized the ability to return to the store, since I have had issues with returns through other vendors. I haven't yet encountered a problem requiring a return, but it's nice to have that option. The build quality could be better, for example the hardware was not included to install both mud-guards. This isn't an issue for me, but for the buyer who expects everything to work as advertised out of the package, it might be. I was also slightly frustrated that the manual did not include assembly instructions. I managed to muddle through, but that same buyer who care about the mud guards will probably care about the manual. I also had difficulty attaching a trailer, but that was not at all the fault of the bike seller or manufacturer, just something to be aware of, this bike has a 1/2 inch rear axle, and the trailer I bought was designed to attach to a 3/8 inch axle. An excellent budget bike for city or short distance riding. I got it to lug myself and a dog around, with both of us we are right around 290 lbs, well short of the 350 lb weight limit. We are able to go 25 mph on flat, paved ground. On an upward incline of about 20 degrees, we were able to maintain about 15 mph without pedaling. Charging for the first time took about 3 hours, I haven't had it long, but I'm assuming that's close to how long it will take to charge from nearly empty.