Service

Lifetime technical supports are provided to each customer. 

Our technical support department will arrange a technician to assist you.   

Technical Support Hours Monday - Friday  9:00 am - 4:00 pm

Our overseas after sales service will help you to replace the parts or send new ones.

Our company is responsible for returning motors at our own expense.

Shengyi offers a standard 24 months warranty.

The warranty starts the day that the bicycle delivered to you.

Your replacement parts will be warrantied for 30 days if you receive them within the last month of Two Years Warranty.