Contact us at

Connected and electric bike wheel – The Original

From 749€

Enjoy the power of a 250W brushless motor to climb without difficulty all coasts, with the ORIGINAL model Rool'in. 28" : DELIVERY FROM 15 June

28 inches
Connected and electric bike wheel – The Original - 28 inches Ref. ROUE28P V2 Livraison à partir du 15/06/2018



+ -
Add to casket
  • More powerful for costs
  • Simple to install and convenient to use
  • Your walks with more fun
  • A design that fits on your bike
  • Color : black
  • Electric wheel comes fully equipped: Wheel with tire and inner tube, LCD console 1 cable, 2 charger (wheel and console), pedal speed sensor, accessories, installation guide
  • Color : black
  • Protective covers Material: Aluminum painted, customizable at will by you
  • Central brushless motor: 250W
  • Lithium-ion Battery: 30V 9Ah, charging time: 4 hours for a full charge, durability: 700 to 1000 cycles (charge / discharge); Battery included in the kit and available as a spare part
  • Battery charger: 30V2A
  • Console charger: USB 5V500mA
  • Battery life: 26 and 28 inches up to 50 km depending on use
  • Maximum speed: 25km / h
  • Wheels: 20, 26, 28 inches depending on the model chosen x 1.5
  • Meets European legislation on VAE and the standard EN15194
  • Can secure the wheel (integrated area of 4 cm x 3.5 cm) with outside lock (not supplied)
  • Immediately withdrawable on handlebar console, with long battery life
  • 2 year warranty (battery 1 year)
Your questions, our answers
Question by richard
How much does the 20" weigh?!
Best regards,

Answer by Rool'in
Rool'in has got 2 models, Original with a display control and SMART with the app control,
You will find the price HERE.
Best regards,
Question by Naren
1. Can you ship to India? 2. How much does a spare battery cost? 3. Where is the battery going to be mounted? 4. What additional weight my bike has to carry for a 28 inch set? Best regards
Answer by L'équipe Rool'in
We deliver in Europe, for the rest please send us an email at to send you an order. The spare battery cost is 300 euros. The battery and the motor is included in the wheel. 
With the wheel, you have an additional weight of 6,5 kg.
Best regards,

I’m asking a question, I make a note

The Rool'in team will personally answer you by email.
If your question is of general interest for other users, it will be published, preserving your anonymity.

You will like also :


Enjoy your bike ride and dry in all weathers through our rain cape, specially adapted.

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.

What might interest you ...
The reinvented e-bike

The reinvented e-bike

Discover why choose an electric wheel rather than an electric bike is an economical option, practice ... and universal.

How to choose your e-bike kit ?

How to choose your e-bike kit ?

Follow our guide to choose the size of your electric wheel and be certain not to go wrong.



Check frequently asked questions about our products and our sales conditions.

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.