For tongsheng mid drive 250w, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our tongsheng mid drive 250w has been well received by many customers and enjoyed a good reputation in many countries. SailiMotor tongsheng mid drive 250w have characteristic design & practical performance & competitive price, for more information on the tongsheng mid drive 250w, please feel free to contact us.