I have an Aventon Level 3. I am very satisfied with the bike except for the Shimano shifters. Many times when I shift I have to play with the levers to stop the chain noise. I also have a 15 year old Specialized hardtail with “higher” level Shimano shifters, and those never miss. These cheaper level shifters are unacceptable; they shouldn’t sell a product that doesn’t do its job properly.