Shimano Derailleur 21 Speed Lightweight Aluminum Mountain Bike

Shenzhen Youku Bike Technology Co., Ltd, which located in Songgang Bao’an Shenzhen, Guangdong China, found in 2014, specialized in producing kinds of ebike and bikes, bike parts.
According 5 years selling situation in domestic, we always provide competitive price and best service to improve and simplify the life of worldwide customers. The products have exported to many countries and regions, such as USA, Europe, Australia, South America and so on. With a complete set of facility, perfect quality insurance system and advanced testing method, our ebike has experienced designers, engineers, management personnel and workers. Our ebike always stress on product quality and new product development. We wins good reputation from our clients. Good quality and service wins much reputation also for the timely delivery and after-sale service. All of our workers have experience more than 10 years, that's a warranty for the quality. All of our sales via good training, for the service warranty.

For quality insurance, we have CE FCC ROHS certificate for our battery, and all products confirm 1 year warranty. We want to sell our good products to all over the world, let's start to co-operate now…