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Electric kit for folding bicycle 250W


Electric kit with motor to electrify folding bicycles. Includes 26", 20" motorized rim and drawer-type battery behind the seat post. Conversion kit with 3 levels of assistance and different autonomy options.  Converts your folding bicycle into a pedal-assisted bicycle. Battery for up to 70km of travel.

509.00 €
5 1
5/ 5
Tax included Delivered within 5-7 days
Rim size
Battery configuration:
battery location
Select display type
type of SENSOR PAS:
 Calculate Shipping Cost
44.77 €
to Portugal via DB Schenker
Estimated delivery: No estimated delivery specified

Electrify Folding Bicycle: 

Fotona Mobility presents this complete electric bike kit for 16, 20, and 26-inch bicycles, ideal for motorizing any bike with these measurements, whether it's foldable or not. It's a budget-friendly option to enjoy assisted pedaling on your bike without having to spend money on a new e-bike. Pedal kilometers with minimal effort!

Electric bike kit components for folding bicycles:

1x Brushless motor from the kit: Hub motor with a nominal power of 250W and limited to 25 km/h in compliance with current EU regulations. The motor can be placed in the front or rear wheel and is fixed to a rim compatible with your bike. Kits for handbikes and tricycles only offer the option of a front hub motor.

1x Lithium-ion Battery Electric Kit: 36V Lithium-ion Battery. Each battery is manufactured on demand to guarantee optimal performance. You can choose from various formats and battery capacities (Wh) according to your cycle's morphology and autonomy needs. The rack option is only available for 26-inch bicycles with grid-type batteries. For 16-inch and 20-inch folding bikes, the battery will be shipped without a rack.

The advanced electric mountain bike kit is available with two types of batteries:


1X Controller 15A FOC (Field Oriented Control): This high-end controller offers a range of advantages compared to square wave/modified wave controllers that are marketed with other kits or electric bicycles, including: 1) Lower noise and overheating, 2) Improved control of the assistance level, making it more progressive and protecting the motor. 3) Greater efficiency in uphill climbs with low assistance levels. In kits with pannier or box type batteries, the controller is positioned in the base of the battery itself, which is fixed to the frame. In kits with bottle or triangle type batteries, the controller is placed in a PVC box with brackets that is attached to the frame of your bicycle.

1x Electric Bike Display: Two display options to choose from:

Option 1) LCD OMT-M3. You have the possibility to purchase it with LED light or without LED light.

The LCD display functions as a control unit that offers various management options for the kit:

  • Assistance level. There are 3 levels.
  • Speed in km/h
  • Total distance traveled
  • Partial distance traveled
  • Battery charge level Option

2) LCD CENTRAL S830 comes with integrated USB and as an option, you can purchase it with LED light or without LED light.

  • Assistance level. There are 3 levels.
  • Speed in km/h
  • Total distance traveled
  • Partial distance traveled
  • Battery charge level
  • Average speed
  • Maximum speed
  • Voltage
  • Battery percentage
  • USB for charging your mobile phone
  • Fault indicator through icon 

Furthermore, both models offer the option to include a front LED light, which is controlled directly from the display, to complement the capabilities of your kit.

1x Bicycle Rim with Motor: Made of chromed aluminum, allows you to choose the rim with a motor from the dropdown menu, for which you need to know the size of your rim. If you have doubts about this, you can consult the wheel equivalence table.

1 x PAS Sensor (Pedal Assist Sensor): The purpose of this component is to activate the motor assistance when pedaling. Choose from 3 available models according to the type of bottom bracket axis on your bike. (*)

         hollowtech ebike  


P    (*) How to know which type of PAS sensor I should select for my bicycle


1xBrake Sensor with Electric Cut-off: This component ensures that every time you engage the brakes on your bike, the electric supply to the motor is immediately cut off, preventing any damage. Choose from 2 formats according to your bicycle's braking system. (**)


(**) How to know which brake sensor to select for my bicycle?

1 x 1T4 Tree-type Cable: Connects the different components of the kit.

1t4 tree type

1 x Motor Extension Cable.

motor extension

1 x 42V 2A Lithium Battery Charger.

buy lithium battery charger

1 x Freewheel-type Threaded Pinion (Optional): If you have chosen a kit with a hub motor on the rear wheel, and your original bicycle does not have threaded pinions, you will need to adapt compatible pinions, which you can purchase along with your conversion kit.

freewheek tyoe threaded pinion

1 x Optional Light (Optional): You can add this to your purchase when choosing the display model.

optional light

1 x Assembly Manual.

All components come with waterproof connectors of different colors to facilitate the assembly and prevent connections from being damaged by rain.

Weight: 5 kg

Estimated lifespan of the lithium-ion battery: 3-4 years

Warranty Limitations and Additional Information:

Maximum speed. In compliance with the applicable European regulations for electric bicycles with pedal assist, our kits are limited to a maximum speed of 25 km/h. Failures resulting from the modification of the maximum speed parameter by the user will not be covered by the kit warranty. Therefore, to ensure safe use, manipulating the factory settings of the kit is discouraged.

Type of use. This kit is not suitable for extensive use in areas with significant gradients such as mountain passes and slopes exceeding 300 meters. Failures resulting from this type of usage will not be covered by the product warranty. On moderate urban inclines, it is recommended not to exceed assistance level 2 and to complement the use of the motor kit with appropriate pedaling effort to prevent overstraining the motor at all times.

Battery autonomy. Fotona Mobility guarantees that the technical data of the battery (Voltage, Ah, Wh) displayed in this product sheet are accurate and offers a 3-year warranty against manufacturing defects in Spain. The autonomy data (km) listed in each battery option are estimates based on moderate use and our own experience, as they depend on at least three factors: 1) User weight 2) Terrain gradient, and especially 3) the selected assistance level. For extended battery autonomy and lifespan, it is recommended to use a moderate assistance level and recharge the battery after each use.

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