250w to 8000w electric bike motor with 48v electric bike battery using for the adult mountain bike

Dongdian ebikekits Co., Ltd. is located in Jiangsu China.is subsidiary of Dongdian motor group which is an area of 31300 square meters.It marjor in permanent magnet brushless DC motor and control system.also is specializing in the production of medium and top quality electric bicycle conversion kits for overseas market.
set design, development, manufacturing as a professional manufacturer.We focus on a series of fashion accessories,
a wide range of diversity, reasonable price and on-time delivery.

Q1. Before placing an order, how should I choose?
A: Size, voltage, wattage, speed requirements, battery type, front wheel kits or rear wheel kits, if you need other parts like PAS, disc brake, speed cassette, just note it.

Q2. Can I take samples to test quality and market in advance?
A:Yes, welcome to take samples to test our quality and service.

Q3.What's the total cost for samples?
A:Total sample cost= sample cost + freight
We will give u the best shipping cost after knowing the wheel size, battery needed or not.
Q4. How do you ship samples?

A:Considering sample quantity is not big, we ship samples by EMS, TNT, DHL or fedex , fast and less damages.

Q5.Why don't you ship samples by sea? We are informed shipping by sea is cheaper than by air.
A: As sample quantity is not big, and customer want to delivery it by sea, it must be LCL shipping(less container loading shipping), generally LCL shipping freight is very low, or it could be ZERO, BUT in destination port, nearly ALL countries charge very high port fees, it might be expensive than by air, thought shipping by air "sounds" expensive.

Q6. What's your minimum order quantity:
A: 10sets, one or two samples are ok .

Q7.What's your delivery time?
A: For samples: within 7 days; For orders: within 25 days.

Q8: How do you control quality?
A:At Dongdian Motor,each ebike and ebike kit will be tested 100%,our QA will check products as international and professional requirements,and sign an independent certificate for each product,so we confirm Golden Motor products are 100% good before shipping.