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A new generation of electric bike

Rool’in offers you an electric wheel to take advantage of an electric bike without getting tired. You can keep your bike for the sportive activities and install the electric wheel in a few minutes to go to make a small race or to go to work… In brief, to move you without neither perspiring nor tiring you.
Furthermore, with Rool'in and its "Satisfied or refunded" guarantee : we will refund you if the product doesn't suit you. You have no excuse to try the experience of an e-bike.

The installation of the electric wheel

No need to change your bike. You only need to change your front wheel to get an electric bike.

It's easy, 1, 2, 3 and GO:

  1. 1. Change the front wheel of your bike,
  2. 2. Settle the sensor at the level of the crankset
  3. 3. Launch the application and go.

Our top products

Connected and electric bike wheel – The SMART

Connected and electric bike wheel – The SMART

Drive smart with the new electric wheel connected Version 2016 which communicates via Bluetooth with your smartphone. 26" : DELIVERY FROM 03/15/17

Connected and electric bike wheel – The Original

Connected and electric bike wheel – The Original

Enjoy the power of a 250W brushless motor to climb without difficulty all coasts, with the ORIGINAL model Rool'in. 26" : DELIVERY FROM 03/15/17

Integrated LED helmet bike Torch

Integrated LED helmet bike Torch

Equip yourself with a helmet specifically designed for cyclists who wish to combine design and safety.



The Rool'in wheel installs and uninstalls in record time. Compact, it will follow you everywhere on the go or on vacation.
And you can lend it to your family!


With Rool'in our customers more use their bikes for trips to nearby reducing the ecological footprint. In addition, keeping your little queen and its setting, it avoids creating additional waste to the planet.


Design is also inscribed in our genes. Simple and elegant, the Rool'in electric bicycle wheel can also be customized by you by repainting the covers aluminum.


2 times cheaper than the electric bike for the same pleasure and a broader range of possible uses.


Our wheel meets the European legislation electric bicycles in force, including the European standard EN-15194.


You can spend a theft at the valve and get your console (your motion sensor for the Smart view), your bike is not electric.

Choose your electric kit unerringly

To purchase your electric wheel to your bike, you must first choose the right size.
Here's how to know the size of your wheel: on the side of your bike wheels, you will find the indication of the diameter of the wheel is expressed in mm 495, 650, 700, or inches respectively 20 ', 26', 28 '. See figure below:
tailles roues anglais
Les vélos VTT  et vélo de femme reçoivent les kits de roue électrique 26 pouces. Les vélos de ville sont complétés avec des roues 28 pouces, les vélos pliables avec des roues 20 pouces.
La roue électrique vélo en kit est livrée entièrement équipée et s’installe en quelques minutes.
Vous pouvez aisément profiter des avantages de l’Assistance Électrique pour vos déplacements en ville ou à la campagne. 
Les sportifs apprécieront le fait que l’aide est débrayable.
Rool'in rend votre vélo high-tech, économique et performant. Roulez devient un jeu d’enfant.

ATVs and women bikes receive electric wheel sets 26 inches. City bikes are complemented with 28-inch wheels, folding bikes with 20 inch wheels.

The electric bicycle wheel kit comes fully equipped.

Sports lovers will appreciate the fact that the aid is disengaged.

Rool'in makes your high-tech bike, economic and efficient. Drive becomes a pushover.

The « SMART » model

Fourche Rool'in Smart vélo électrique


We invite you to read 3 measures to respect for a perfect installation:

- The distance down the fork should be 100 mm (you can play up to 8 mm on the distance of the fork with washers)

- And 82 mm to 105 mm from the bottom (you can play up to 8 mm on the distance of the fork with washers)

- The diameter of the fork lug must be 10 mm

And it's very simple:

1) Download the mobile application entitled "Rool'in" available on Apple store and the Play store.

2) Set the wireless speed sensor on the opposite side of the chain to the pedal crank. Assistance works as soon as you pedal.

3) Establish the connection between the sensor and your mobile device (see manual).

The app has additional features (average speed, mileage on a run, total distance, ...) and will become the indispensable partner of all your walks.

With this wireless system, the detection of your movements is amplified, the electric assistance is instantaneous and fluid.

Buy the Smart

The « Original » model

 Check measures at your fork as above in the section Version "SMART".

 In addition, the kit comes with 2 mounting options for the pedal sensor or sensor 



1) Adjustable clamp system
attache elastique anglais

2) System with elastic

- The magnetic disc (D) also requires a space of 4 mm to be able to insert between the edge of the bottom bracket and pedal by clipping directly.

Buy the Original

For more information on the electric wheel, contact us by phone at  01 42 04 52 33 or mail.