Hadnt checked out all the bikes but theres several on this listing like your top bicycle that has a F ranking Along with the bbb complaints and theres a number of declaring they dont honor warranties, they bs ya till ur bicycle runs outside of 14day refund time period As https://medium.com/@usamach4969/affordable-ebikes-2024-how-to-score-the-best-budget-ebikes-without-sacrificing-quality-faed56035f8b