Love the Bike, it is great enjoyment to trip. Compared to a Sur-Ron X This is a authentic motorcycle! It's a loud reduction gearbox, perhaps Sur-ron want to interchange straight Reduce gears with helical types. However a lot quieter than any ICE motorcycle. This bike is a great deal entertaining! https://surronelectricbike37070.bloggosite.com/43990032/an-unbiased-view-of-surron-ultra-bee