HAIDONG Ninja Electric Fat Bike
The high-speed brushless gear hub motor can provide 750W power and 80Nm torque, which can help you easily conquer the most rugged terrain, such as sand, snow, grass, and mountains, etc.
Equipped with a Samsung 48V 17.5Ah battery to ensure long life and high performance. We provide a 2-year warranty on the battery.
In pedal-assist mode, we have a cruising range of more than 60 miles per charge, while in pure electric mode, it reaches about 35 miles.
LCD Display speed, mileage, power, pedal assist level, USB charging, etc information.
|26" x 4" Kenda fat tires|
|Alloy front suspension fork with lockout and adjustment|
|Aluminum alloy comfort grip levers with motor cutoff switch|
|Half twist throttle|
|Alloy pedal with reflectors|
|Shimano 7 speed gear shift system|
|Tektro aries 180mm brakes|
|48V LED light|
|Velo soft saddle|
|Promax MA-400 SSABK|
|Diameter 30.4mm length 300mm|
|170mm forged alloy|
|Heavy duty aluminum|
|Shimano- 14-28T BROWN/BK|
|13 Gauge on the front / 12 Gauge on the back|
All orders cancelled after 48 hours are subject to a 5% administration fee and transaction fee (2.6% for credit card users, 3.6% for PayPal users, 3.5% for Affirm users). Orders purchased after 30 days could not be canceled.
Processing & Shipping
We ship to locations within the mainland ALL United States.
2. Processing time
Your order will be shipped within 3-7 days (Monday-Friday) From 4 Large warehouses in the United States distributed in California and Oregon.
In rare cases, the items we send will be damaged during transportation. In this case, please contact email@example.com and provide us with photo or video proof. We will actively solve the problems for you.
Note: We will not accept shipping damage claims after 7 days from the date of receipt of the product.
The above explanation of the warranty policy belongs to Haidong. If you have any questions about this warranty policy, please send an email to firstname.lastname@example.org.
We provide a standard, limited warranty for manufacturer defects and workmanship of all models of electric bicycles, scooters, and their components purchased directly from the Haidong website. From the date of delivery of the product, during the warranty service period, the defective parts caused by Haidong will be repaired or replaced free of charge. The client needs to provide the original purchase receipt to establish the proof of purchase and determine the warranty start date.
Electric Bicycle Warranty Period
From the date of delivery, the warranty periods provided by Haidong for the following components are:
|Component||Warranty Period||Service Content|
|Motor||2 Years||Free maintenance or replacement|
|2 Years||Free maintenance or replacement|
|Frame||2 Years||Free maintenance or replacement|
|Controller||2 Years||Free maintenance or replacement|
|Brake||1 Year||Free maintenance or replacement|
|Handlebar||1 Year||Free maintenance or replacement|
|Seat tube||1 Year||Free maintenance or replacement|
|Tires||1 Year||Free maintenance or replacement|
|Pedal||1 Year||Free maintenance or replacement|
|Cushion||1 Year||Free maintenance or replacement|
|Note: If there are any quality problems with the battery, motor, and controller of the electric bicycle received from Haidong within one month from the date of delivery, Haidong will send new bikes to the client for free.|
Electric Scooter Warranty Period
From the date of delivery, the warranty period provided by Haidong for the following components are:
|Component||Warranty Period||Service Content|
|Controller||2 Years||Free maintenance|
|Frame||2 Years||Free maintenance|
|Motor||2 Years||Free maintenance|
|Battery||2 Years||Free maintenance|
|Brake pads||1 Year||Free maintenance or replacement|
|Bracket||1 Year||Free maintenance or replacement|
|Note: If there are any quality problems with the battery, motor, and controller of the electric scooter received from Haidong within one month from the date of delivery, Haidong will send new scooters to the client for free.|
The Limited Warranty Does Not Include the Following:
- Any products not sold on our website.
- Defects or damage caused by external reasons, including bad weather, natural disasters, accidents, or improper storage, stolen items, etc.
- All human-caused, including defects or damage caused by improper operations such as assembly, testing, use, maintenance, modification, upgrades, etc.
- Ordinary wear and tear caused by normal storage or use.
- Products whose serial numbers or barcodes have been removed, defaced, damaged, altered, or illegible.
1) During the warranty period, the customer can get in touch with the customer service staff of Haidong via email, telephone, or any other communication method.
2) It is necessary to provide pictures or videos of the problematic part so that we can evaluate the problem.
3) After receiving all the information we need, we will notify the technical department, and the technical department will guide the customer to repair.
4) Once the technical department agrees, we will send you replacement parts and assist you with warranty issues.
Note: Haidong will not replace any parts without first seeing the photos or videos of the damaged product. Customers need to provide evidence to us via email.
Haidong electric bicycles use fully automatic European production lines, 74 production processes, more than 300 small inspection links, and layers of checks to ensure that the quality of each electric bicycle meets the standard! Since 2017, Haidong has cooperated with various scientific research institutions in China, and has made great leaps in the development, process management, and quality inspection of electric bicycles, and has created top, reliable and high-quality products for the industry!
In 2018, Haidong expanded its factory to 20,000 square meters, introduced a production line for electric scooters, and added 3 automated welding production lines. Now it can produce 20,000 electric bicycles and electric scooters every month! Haidong uses advanced cutting, forming, welding, and polishing equipment, with high production efficiency and the ability to produce 1000 sets of frames per day.
Haidong has hired several experienced designers. Our engineers can turn your hand-drawn drawings or ideas into 3D drawings, and finally provide you with prototype samples, which can be completed within a week! As of March 2021, we have obtained more than 50 patents in the field of electric bicycles!
We have been adhering to the people-oriented, innovative, and environmentally friendly design concepts, and are committed to developing electric bicycles that are more ergonomic, low-carbon and energy-saving.
Haidong helps brand owners and wholesalers quickly upgrade their brands and profit from them. 90% of our products are ODM and OEM. We have a highly-skilled R&D team and actively expand our product range to adapt to changing market trends. We have customers all over North America, Europe, Asia, and other countries/regions. Haidong has reached pleasant cooperation with many distributors. If you are interested in any of our products or want to discuss custom orders, please feel free to contact us!