Shenzhen Sereintek Technology Co., Ltd is a professional electric bicycle manufacturer with 9 years of experience located in Shenzhen, China. Focusing on development, production, processing, and overseas business. CE, RoHS, and UN38.3 certified. This is how we maintain quality and reliable cooperation for our valued customers worldwide.Why choose Sereintek?1. Diverse product types. We have electric bikes, folding bikes, city bikes, electric scooters, balance scooters, etc.2. Affordable price. All our electric bikes are sold at affordable/competitive prices. 3. High-quality bicycle parts. We choose all good quality bike parts suppliers, such as Bafang, Shimano, Kenda, you will not need to worry about the performance.4. OEM/ODM service. We can accept customized logos, colors, specifications, outer boxes, manuals, etc.5. Sturdy packaging: Each bike comes in a sturdy cardboard box to ensure it arrives in perfect condition.6. Good warranty: 12 months warranty for the frame, motor, battery, charger, controller, monitor.7. multiple payment methods. TT, credit card, west union, money gram, PayPal.8. Secure payment terms: we can trade through trade guarantee orders on the Alibaba platform. https://dgyihaoltd.en.alibaba.com/If any of our products meet your needs, please contact us. Contact us and you'll get what you want.