








Introduce your content
Answer your customers' common questions
List a frequently asked question
Then provide an answer that will help your customer make an informed purchase.
List another frequently asked question
List another frequently asked question

QUALITY CERTIFICATE
Varstrom had became Bafang Cooperation Brand since 2018.

TWO YEARS WARRANTY
One Year Warranty for all customers.
Two Years Warranty for all subscribers.
Convert Your Fat Bike
If you are owning a fat fat bike and thinking about how to convert your fat bike to motor drive. Then you may need to know some information provided by Varstrom to help you choose for fat bike conversion kits.
Fat Bike Rear Hub
In fact, we do not need to consider the power of the motor below 500W, because it will not have any wonderful riding experience. Then 750W or 1000W will become the choice. Bafang 750W 48V fat tire cassette rear hub could be the choice. This fat bike conversion hub is compatible with bikes has 9 speed with disc brake, the OLD should be 175mm to 185mm.
The Core Data of the Hub
We also need to know about the specification that relates to the riding experience. Take Bafang 750W 48V as an example, it provides 20/26 inches wheel size, nT = 325/290Rpm, Max Torque is 80Nm, Motor Efficiency is above 80%, Sound Intensity below 55dB. And the weight of the hub is just 4.1kg.
Package of the rear hub kits
1*Bafang 750W 48V fat tire cassette rear hub, 1*controller with box, 1*waterproof 1T4 EB-Bus cable, 1*9 pin motor cable, 1*thumb throttle, 2*brake levers, 1*PAS sensors (left) and also a headlight as a gift. Moreover, Varstrom offers the best displays for you to choose and also the battery as the option if you need it. **Buying all the parts at the same time helps to get the best repair service because you don't have to think about where this or that part was purchased.
LCD Display With Discount
Varstrom provides two brands of display, Bafang displays and our own brand Accolmile displays. We highly recommend our customers to consider our meters because our meters have the same performance as Bafang's but the price is much cheaper, it helps you complete the ebike conversion with lower budget.
Varstrom Ebike Kit with Battery
We do all the pre-work for our customers, you don't need to spend a month trying to understand each accessory will meet your needs. You just need to choose the option according to your budget on the drop-down menu. Varstrom makes sure that the all conversion kits are highly adaptable and cost-effective. Moreover, we are also responsible for all after-sales services.
What are the parts?
So, let's talk about what is inside a Bafang mid drive motor kit package.
First there is a hub and a pack of screws for mounting. Then the display, Varstrom offers many displays as options. Then the battery it is. And then a controller, it comes with the controller case for storage. A 9 pin hub extension cable, the cable is used to connect the hub to the controller. 1T4 EB-Bus cable, the cable is for connecting the controller to the display, thumb throttle, eBrake levers or eBrake sensor. Next we can see the eBrake levers or the eBrake sensor as the free options for customers, if the customer wants to keep their own brake levers, you can choose the eBrake sensors. And the PAS, we offer a left/right double hall pedal assist sensor. Thumb throttle for controlling the power of the hub.
At the same time, Varstrom offers some gifts for our customers such as XT60 connector, headlight, cable ties, 250W/36V sticker and the user manual.

1
Bafang Hub Motor
500W/48V rear hub cassette
500W/48V rear hub freewheel
500W/48V front hub
750W/48V rear hub cassette (for fat bike)

2
Varstrom Display
Varstrom offers different displays for customers, and you can get an extra price discount ($10.00) by purchasing the meter along with the conversion kits.

3
eBike Battery (options)
Varstrom offers 36/48/20V batteries (with charge) for customers, and you can get an extra price discount ($20.00) by purchasing the battery along with the conversion kits.

4
Controller
Manage and control the entire eBike system and implement all functions of the eBike.

5
Controller Case
Storage the eBike controller, keep the controller from dust or water.

6
9 Pin Hub Extension Cable
Connects the hub to the controller for power supply, communication, etc.

7
1T4 EB-Bus Cable
Connect the controller to the display, thumb throttle and eBrake levers or eBrake sensor.

8
Mechanical eBrake Levers
Varstrom eBrake levers have built-in motor brake wires, it is used to replace your original mechanical eBrake Levers. EBrake levers connect to the 1T4 EB-Bus cable.

9
eBrake Sensors
If you want to keep your Hydraulic levers or mechanical levers, you can choose this eBrake sensor to convert the original brake levers. The EBrake sensor connects to the 1T4 EB-Bus cable.

10
Default and Spare PAS
Left PAS sensor for the square crank hole size is 15mm, right PAS sensor for the square crank hole size is 17mm.

11
Thumb Throttle
Thumb throttle is used to control the power of the hubs.

12
Headlight
It is a gift for the eBike conversion kits connected to the motor.

About Varstrom
Global one-stop e-bike conversion service for Bafang eBike Kits
Since 2018, Varstrom has been a Bafang partner brand. Over the last four years Varstrom has built very close relationships with our customers all over the world and Varstrom has set up warehouses and repair centers for complete e-bike conversion kits in many regions of the world. As soon as your complete e-bike conversion system is realized at Varstrom, you can get faster shipping from the warehouse and support from all these after-sales centers.
Shipping & Repairing
Varstrom and Bafang established very close cooperation. To provide Delivered Duty Paid (DDP) Product, we also established a lot of warehouse around the word to make sure that all the customer will get their package without extra tax fees and as soon as possible. Also we work with local bike stores to provide repairing service. You can get one-year guarantee and lifetime warranty from these bike stores.

Varstrom eBike Conversion Service

BAFANG BBS01B/BBS02B
- 500W/48V Front Hub 26/700C (in)
- 500W/48V Rear Hub Cassette 20/26/27.5/700C (in)
- 500W/48V Rear Hub Freewheel 26/700C (in)
- 250W/36V Rear Hub Cassette 20/26/27.5/700C (in)

BAFANG FAT BIKE HUB
- 750W/48V Fat Bike Cassette Rear Hub 20 (in)
- 750W/48V Fat Bike Cassette Rear Hub 26 (in)
eBike Displays
Varstrom offers Bafang and Accolmile displays. We highly recommend customers to consider Accolmile meters because they have the same performance as Bafang's but the price is much cheaper, it helps you complete the ebike conversion with lower budget.
Varstrom Battery
Greenway is one of Varstrom's battery suppliers, it is a leading company specializing in the battery design and manufacture. We have established a common goal to provide the safest, best performing and most cost effective eBike batteries for all those who use Bafang eBike motors.
If you don't know who is Greenway, you may know DURACELL and Energizer, they are top dry cell brand. And Greenway is their supplier.
Greenway
Greenway
DLG is the other one of Varstrom's battery suppliers. DLG provides customized green energy solutions based on core technology of battery cell manufacturing. DLG started E-BIKE project in 2007, 15 years of development has ensured the quality and safety of its eBike battery, which we can use their batteries with confidence.
DLG has latest equipment and latest technology, Varstrom develop its new battery with DLG for better, safer batteries for Bafang Drive Kits.