About ExtenRide

Taizhou Zhengshi Trading Co., Ltd. is a technology-driven company specializing in electric bikes, motorcycles and electric mobility. With over 20 years of R&D experience — from in-house electric motor development to complete vehicle assembly — we have developed and launched our own line of electric outboard motors.

Headquartered in Taizhou, Zhejiang Province, China — the country's leading industrial cluster for electric bikes and motorcycles — we benefit from a complete local supply chain, mature manufacturing ecosystem and fast product iteration, giving us a strong competitive edge in quality, cost and delivery.

Every product undergoes strict quality control before shipment. We offer full warranty support, technical documentation and fast after-sales service.

Our Certifications

✅ ISO 9001:2015 Quality Management
✅ CE Marking (EU Compliance)
✅ RoHS Compliant
✅ Factory Audited & Approved

Shipping & Logistics

🚢 Sea freight (FOB Ningbo/Shanghai)
✈️ Air freight (DDP/DAP available)
📦 Express (DHL/FedEx/UPS/TNT)
🏭 Global delivery to 50+ countries