ZheJiang YongChi Electric Scooters Co.,Ltd. is a professional manufacture of mortor, we have more than ten years experience in researching and developing electric mortor, so we could control the motor's quality well, and, we inspect our supplier factories strictly to ensure any outsourced components are made to our standards. Meanwhile, quality assurance is extremely important at Yon chi,Because of this, we have advanced QC equipment at each of our production facilities. All these run according to IQC and FQC standards and specifications. This allows us to provide you with high-quality products that you can offer your markets.We expand design techniques and keep up with the latest market trends through regular market research,our design team releases new products every Couple of months.YongChi are not only reliable for its product quality. It's also known for the customer service, all products sold on YongChi include a 6-months parts warranty, It is valid after the date of arrival. And we always send 2% free spare parts together with container when order reaches one full container for single model. Normally, this is enough for you to remain the products in good working conditions. If you need more spare parts,we would like to offer you the price of part for your reference.