Bobber 250W 20 or 24 inch front wheel kit with 36V gourd battery

Contenu de ce pack:

Info Bulle

Quantité : 1
179,00 €

Info Bulle

Quantité : 1
125,20 €
  • 20 inch (classic MACH1 rim) adapted to your bike
  • 24 inch (classic MACH1 rim) adapted to your bike
  • Inox
  • Black
  • Yes

Info Bulle

Quantité : 1
90,00 €

Info Bulle

Quantité : 1
79,00 €
  • Vertical Black and white
  • Compact color
  • Vertical color

Info Bulle

Quantité : 1
20,00 €

Info Bulle

Quantité : 1
22,50 €

Quantité : 1
13,00 €
  • 110 cm

Quantité : 1
39,90 €
  • Jack
  • 2A

Quantité : 1
  • None
  • classic pack


New product

Limited special offer

867,60 €

885,00 €

-17,40 €

- +

More info


The Bobber 250W kit will allow you to easily transform your bike into an electrically assisted bike.

This kit meets all the VAE criteria: 250W and 25Km/h

With its motor that weighs only 2.8Kg, it will be forgotten on the bike.

The internal freewheel, allows a disengagement of the motor during the rolling without assistance what will allow you to use your bicycle in muscular without being braked by the motor.

Once the assistance engaged, the motor will help you up to 50% of your traditional effort for a slope of 10%: The maximum torque is 40N.m

We recommend this kit for those who want a simple and light installation, which meets the VAE criteria.
This kit being in conformity with the VAE 250W 25Km/h standard, you can benefit from a subsidy of your department or your commune for the purchase. The conditions of subsidies are variable according to the departments and the communes... Some are very generous and others offer nothing! Please contact your department or municipality for more information. OZO maintains a list of municipalities that offer assistance for conversion kits on the following link: See the grants by cit.



The "Bobber 250W" rear wheel motor is a reduced motor with reinforced epicyclic gear and internal freewheel. This allows you to have a lot of torque and a great facility with the pedalling since the engine is completely disengaged when it is not fed... You pedal like on a traditional bike without the motor braking you.

The "Bobber 250W" motor is supplied with washers that will allow you to center the wheel in your frame. It can be installed on all traditional frames equipped with a rear axle in 135mm of center distance.

You will be able to screw your brake disc to the standard 6 holes on the motor.

With your kit you receive a complete drive wheel. All our wheels are carefully spoked in our workshop by enthusiasts: spoke tension, centering, sail and false round, everything is checked before shipping.

The 36 spokes are made of stainless steel 2.3mm diameter, manufactured in France.

Once your order is validated, OZO will choose the rim model adapted to your bike and your practice.

All our rims are made in France and are double-walled and reinforced, allowing you to use your kit in all conditions.

For bikes equipped with brake pads, we will choose the Mach1 260 rim

For bikes equipped with disc brakes, we will choose the Mach1 KLIXX rim

The KLIXX rim is also compatible with a tubeless tire.


The 15A controller comes with a fully sealed Julet connector that is very easy to install. Each connector has a coding device, so there is no risk of making a mistake.

All connectors are waterproof and have visual indicators. It's impossible to make a mistake when plugging in.

A single cable runs from the motor to the handlebars to connect the various accessories:

2 Red connectors for the brake cut-offs

1 Green connector for the handlebar display

1 Yellow connector for the gas pedal (optional)


The battery gourd 36V 230Wh is the lightest of the range and also the most discreet
It fits in the original bottle cage of the bike and its gourd format allows to carry it easily even in a handbag.
1,25Kg only
Compatible with all our 250W motors


Vertical black and white display, the entry level: Black and white display, it groups all the main functions. The remote selector allows you to turn the system on and off and to navigate among the 9 assistance modes. The original support is intended for an installation in the center of the handlebar, but we propose in option a support in stainless steel on stem for the VTT or the gravel.

Compact color display: Its compact size makes it perfect for mountain biking because it is not exposed to shocks. It is positioned to the left of the handlebars and directly integrates the + / - buttons allowing you to choose among the 9 assistance modes proposed.  

Vertical color display: With this display, you have access to the best of what is available on the EAB market. This model displays a maximum of electrical parameters and routes, has an auto-adaptive backlighting according to the brightness and a USB port allowing the recharging of a smartphone or GPS while riding. 9 modes of assistance fully customizable by the user: You are free to set the 9 modes so that your assistance best suits your needs. Remote selector to the left of the handlebars for better ergonomics.


On the wheel motor kits that are equipped with 15A controllers and more, you will need a pedal sensor. This will engage the motor and therefore the assistance of the bike.

The pedal sensor is a rotation sensor. You are obliged to pedal to have the assistance. There are several types of sensors to match 90% of bikes on the market.

Integrated bottom bracket sensor: For square axle bottom brackets that have a minimum clearance of 4mm between the crank and the frame.

Bottom bracket sensor with magnetic disc: For all other bikes that do not have the minimum clearance to install an integrated sensor.


The throttle offers the ability to control the motor without pedaling.

In the form of a thumb trigger, the throttle can be installed on the right or left side of the handlebars.

Note, however, that the throttle is not approved for use on roads open to traffic.

It can be used on a mountain bike to help with hill starts and obstacle crossing.

The brake cut-off is an additional safety feature that cuts off power to the motor when braking. This is particularly useful during delicate maneuvers.

The brake cut-off comes in different forms:

Brake handles that can be installed in place of your original handles.

The sensor on cable which is installed on the brake cable.

The magnetic sensor to be reserved for bikes equipped with hydraulic brakes.

OZO has selected for you the best tires on the market. With integrated anti-puncture protection or double ply, you will find all the tires in the tire section.


The Bobber wheel kit is compatible with all bikes equipped with a 9x100mm or 10x100mm front wheel axis.

To be sure that the installation is possible on your bike, you need to verify that you have a traditional open frame with 100mm of center distance.

With a ruler, measure the inside width of your frame (value A). You must have at least 100mm (10cm).

Then measure the frame notches (B value). You should have 9 or 10mm.

Data sheet
Maximum speed25 km/h
Motor positionFront