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WITHUS&EARTH Wheelswing Bicycle Generator NCD Contactless Direct Rechargeable

  • Payment
    L/C(sight) , O/A , OT , T/T , WK , WU
  • MOQ
    1 Unit
  • Supply Ability
    10,000 Unit per Month
  • Supply Details
    Customization Sample Order

    If you want bulk purchase, please contact us.

  • Country of sale
    Asia, Americas, Europe, Middle East, World Wide
    • EXW

      Depend on quantity

    • FOB

      Depend on quantity

    • DDP

      Depend on quantity


  • Brand
  • origin
    Republic of Korea
  • Size(Capacity)
  • Weight
  • Material
    PC, Rubber, Silicon, etc
  • Color
    Black, Dark Red, Dark Blue, Mint
  • Features
    NCD Contactless Direct Rechargeable


WITHUS & EARTH is a venture company established in 2017, and the one and only manufacturer making the rechargeable contactless bicycle generator in Korea. It started its business in an effort to enable more people to use eco - friendly energy regardless of time and place easily by developing a bicycle generator that the first contactless power generation technology is applied in the world.



Product name : VOLT 1 plus-NCD
Dimension : 158*156*70MM
Weight : 415g
Material : PC, Rubber, Silicon
Color : Black
Capacity : USB2.0 (5V,500mAh output)

Click Here to View Video


Before placing an order, please read the following dex-scription carefully.
- Non-contact generators are suitable for rim brake bikes, and indoor cycling bikes.
- If you have bicycle wheels including carbon rims, steel rims, disc brake bikes, mini velos, and folding bikes, we recommend our non-contact generators for you.

For all the bikes out there!
Non Contact bike generator

Ideal for..
- If you are enjoying speedy bike riding frequently
- If you are part of a riders' club/if you are running it
- If you are planning to go cross-country cycling or bike touring
- If you are stressed about smartphones or bike lights getting charged regularly
- If you are using items that need recharging quite often during cycling
- If you are a rider that does a speedy cycling or long-distance one

NCD operation system
It is the world's first NCD bike generator that works using the magnetic field.

The principle of Arago's disc
The idea is that, when the bicycle starts running, a dense magnetic field filled between the wheel rim and the generator will rotate the generator's head without causing frictions, and generate electricity as a result.

Electricity generation
You can create electric power while riding.
You don't need extra batteries. Charge the lights with the power you create yourself by cycling.

USB charging type
All devices that use USB can be easily charged by the generator.
There is no charging terminal in the direct charge models, so it is tightly sealed when sent out to prevent dust or impurities from getting in.

How to install
1. Depending on the thickness of the sheet and fork, select the right rubber pads and crescents and brackets. assemble all of them together. 2. Using the installation guide, identify the right position to install. 3. Place the bracket into the position and secure it with bolts and nuts. (fasten it slightly loose for more position adjustment)
4. Insert the main unit into the fixed bracket and fasten it with nuts and bolts. after final position check, fasten the bracket tightly. 5. Installation complete (contact type) 6. Installation complete (non contact type)

Universal Bracket
Bracket that could reduce vibration by applying 2 different steps.
Whether it'd be the front or rear wheels, it can be still installed easily.

Hybrid type
By changing the rubber ring regularly, the operation type can be switched easily.
When you are doing a slower riding, but if you need much faster recharging!
Use it as a contact-type in that case.
To keep the tires from wearing out, the booster ring W needs to be contacted with the rim Tightly.

Easy pedaling
Unlike conventional bike generators, the resistance against the pedal is low.
So the pedaling is much lighter, easier and smoother.

Resistance per driving energy (driving test results at 25km/h)
2 % non contact
5 % contact

Reliability testing
For safety assurance, we have conducted rigorous tests.
- Drop and shock resistance tests
- Thermal resistance tests
- Low-temp resistance tests
- Water-proof/ dust-proof testing
- Vibration tests
- Pedal resistance test

IPX5 water proof grade.
It can be used in the rain, but make sure that the USB terminal should not be wet by water.

Product comparison

Product packaging (non contact)



This supplier supports payments for offline orders
  • Letter of Credit : L/C(sight)
  • West Union : WU
  • Open Account : O/A
  • WK
  • OT
  • Telegraphic Transfer : T/T
Contact Payment Manager
  • Name : younghoi heo
  • Tel : 0538518891
  • Email : wheelswing@wus.co.kr


Shipping from : Republic of Korea
  • 27 Sampung-ro, Gyeongsan-si, Gyeongsangbuk-do (38542)
  • The person in charge

    younghoi heo
  • Telephone

  • Fax

  • Address

    27 Sampung-ro, Gyeongsan-si, Gyeongsangbuk-do (38542)
We develop products that generate and use electricity using kinetic energy. With Us&Earth, the world’s first creator of Non-Contact Bicycle Generator, makes easy access to Green Energy possible. Our Bicycle Generator, among other Portable Green Energy Harvesting method, can generate electricity simply by riding a bicycle. Wheelswing will contribute to reducing the generation of waste batteries and saving household electricity use, thereby protecting the environment, preventing carbon emissions, and delaying global warming. We can also supply power to all USB charging products, so we are trying to use it in various fields.
  • Business Type :
  • Main Product :
    Bicycle Generator & Charger
  • Established :
  • Total Annual Revenue :
    Less than 100 million (KRW)
  • Total Employees :
    Less than 5

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  • Total revenue (previous year in USD)
    Less than 100 million (KRW)
  • Total export revenue
    (previous year in USD)
  • Number of foreign trade employees
    Less than 5


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supplier level
Seller's Store url
  • Response Level
      41% ~ 50%
  • Supplier Level
      Less than 100 million (KRW)
  • Transaction Level
      less than 5