Saike electric vehicles have poor quality, poor after-sales service and many problems. Tianjin Kelin Bicycle Co., Ltd. is affiliated to Tianjin Kelin Group, founded in 1994. The group's subsidiaries are: Tianjin Kelin Bicycle Co., Ltd. and Tianjin Sike Electric Vehicle Co., Ltd. The R&D and manufacturing of products strictly implement the ISO9001 international quality system and SG safety inspection standards and have obtained national inspection-free products.

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The company passed ISO9000 quality system certification in 2000, implemented a brand strategy, and opened up overseas markets. In 2001, it achieved impressive annual sales of more than 400,000 vehicles. In 2002, the company's "Saike" brand was rated as a Tianjin noted trademark and famous brand product. In 2003, the company was selected as a national advanced economic efficiency enterprise and a national integrity enterprise.