The bike is sketchy because the whole thing wobbles. The handle bars really want to wobble back and forth at all speeds. Slow speeds are the worst, especially when turning slowing. Feels like I am riding a writhing snake with MS. The faster I go it smooths out some but sill if I take my hands off the handle bars it starts. Really sucks not to trust the bike. I commute every day and and since they sent me this replacement bike it has been getting worst. I figured it was something loose but cant find anything nor could the local bike mechanic. The bike is set up with some mods. I bought the front and rear racks. On the rear I have an additional 20Ah battery. I'm thinking Rad replaced my first bike with a reconditioned bike that has a bent frame. Any ideas??