Fairly sound e-bike! The only real downside would be that the throttle isn’t as “snappy” because the Surron X for instance. The throttle is quite gradual, when you get to love 12mph probably. Also, I've an issue a few loose o-ring on on the list of fork legs. I Have https://1-webdirectory.com/listings12800034/details-fiction-and-surron-usa