Benefits of the Gboost E-bike Retrofit Kit

Small & light weight

The motor unit is so small that people will barely notice the motor mounted to the bicycle. It weighs only ~950gr !


Cycling with no battery & energy recovering

The motor can be fully disengaged to guarantee no braking forces what so ever in the normal bicycle mode. So you can continue to use your Gboost-ebike without motor assistance also as a normal bicycle. Or you can keep it engaged to re-charge your battery when rolling downhill and also use less your breaks.

Easy to install in minutes

The Gboost-E-bike-Kit can be installed in no time on any size of bicycles, without the need of special tools or skills…

  • one screw only to fix the motor & control unit.
  • no need to install an external magnet disk (on newer bikes is often not enough space for these disks) 
  • no a battery-powered wireless senors (no risk of failure due to an empty sensor battery)

(check out the short video)

(and compare to others like add-e or go-e)

Gboost_is fully sealed which is not the case in other firctrion drives as add-e or go-e

Proven high reliability

To survive the daily use, especially in wet and dirt conditions, the Gboost motor is a real closed design. Dirt and water will cause no damage or corrosion. All connectors a sealed, too. The bearings, one on each side, are over-seized to take the tire pressure loads to ensure for a long live.

(Other friction drives on the market use just standard stock RC model motor designs, which are very sensitive to dirt because and corrosion, due to their open air-cooling design.  These RC motors also have and only one small bearing on one side, not designed for the tire pressure load and fill fail sooner or later. )

Thanks to our special designed control technology, there are no external sensors or hall sensors needed. 

Our Gboost V2 was sold over 1000 units in Decathlon stores, with an exceptional low failure rate and still running strong, thus of their fully closed design. 

Ultra silent

The newest engine technology paired with our internal damping makes the Gboost is so quiet that bystanders cannot hear whether you are driving with or without engine assistance.

GBoost is still the only really silent friction drive in the market, you can buy today.
Check out the video:   (click on the image) 

Internal Pedal Sensor :
simple, reliable & compatible with any pedal crank

Thanks to the the integrated pedal assist sensor (patent pending), just stick a tiny magnet to the pedal crank, save time and forget it forever.

There is no more need to install a classic pedal assist sensor and the ugly magnet disk as well. This also often caused installation challenges in the past, thus in many modern pedals systems is not enough space for the magnet disk.  The old classic external sensors often fail, either because so sensitive to the position (+-2mm). And the newer wireless external sensors, often run out of their battery or even have disturbed wireless connections in some areas.  We used this solutions in the past… not anymore.

Extreme efficiency and range
works with not perfect round wheels

To avoid the slipping of the motor, a patented pressure regulation assures that there is just enough pressure of the motor onto the tire, so it is not slipping (also in wet conditions). The motor should also not press too much and deform the tire, thus this would waste energy. This regulation mechanism also compensates for less tire air pressure or not perfectly round turning wheels. (Which is not so rare in real day to day usage of bicycles).

One more thing, for the geeks… : The pressure regulation is also responsible that we have unbeaten efficiency among friction drive systems, even outperforming many classic e-bike systems.
And better efficiency means, you will get more range with the same battery.

Configure speed- & power- limits to your liking

With the Bluetooth LE capabilites you can connect the Gboost controller to your phone. So you can adjust via sliders the speed and power limits for each of the 5 assistance modes. As well other features eg. anti-theft, kids-mode and more to come via software upgrades.
 NEW apps for: Iphone, Ipad and Android phones,

GboostV6 phone app menue
GboostV6 phone app configure mode

Gboost V8 System Specifications

2 Motor Versions


“EU-conform speed and power” 

Smart controller, high efficiency and silent operation

Power: 250 Watts continuous & 500 Watts peak

Speed: 25 km/h 

5 Assistance modes

Suggested Battery : 36-48 Volt

Weight: 950gr


“All Gold features plus extra speed, extra power and phone connectivity” 

Smart controller, high efficiency and silent operation

Power: 800 watts

Speed:  +32 km/h

5 Assistance modes

Suggested Battery : 43-48 Volt

Weight: 950 gr


Light weight battery with high performance last generation Panasonic lithium cells, in low key bottle form.

  • In stylish all black design and 
  • Easy universal installation on your bike
    The battery holder is easy to mount on any bike frame, with just 2 screws at the holes for the drink bottle or if not available with 2 clamps at any place.
  • Battery management system for optimal charging and battery-life
  • On / Off switch
  • LED battery charge level indicator
  • Key lock theft protection
  • Water & dust protected connector, assuring proper contacts at any adventure and the spiral cable allows you to adjust the length to your bike need without having to cut and refit the cable connector
  • A 90W power charger is included

3 Versions

Version 1 : “Smart” battery

Best price performance

  • Battery : 251 Watts-hour
  • Power : 43,2V / 5,8Ah
  • Ultralight weight : 1,6 kg
  • Charging time : 2,8h
  • Dimensions (diameter x length) : 85 x 216 mm
  • Distance possible : ~+50km **

Version 2 : “Performance” battery

50% extra range

  • Battery capacity : 365 Watts-hour
  • Voltage : 43,2V  8,7Ah
  • Ultralight weight: 2,3 kg
  • Charging time : 4,2h
  • Dimensions (diameter x length) : 85 x 285 mm
  • Distance possible : ~+75km**

Version 3 : “Extra-Performance” battery

75% extra range

  • Battery capacity : 441 Watts-hour
  • Voltage : 43,2V  10,5Ah
  • Ultralight weight: 2,3 kg
  • Charging time : 4,2h
  • Dimensions (diameter x length) : 85 x 285 mm
  • Distance possible : ~+90km**

*in EU-Countries for use on private non public streets use only, max speed depending on battery voltage
**based on a realistic 5Wh/km at continous usage in normal assistance mode on a flat surface, it will be less at high power- and high speed modes, your range depends also on your weight and your cycling style as well tires etc. 

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