Rool'in customers' testimonies




I have bought an electric wheel to go to my office and make some shopping on the week-end. After 2 months of use, I’m very satisfied. My daily travels are very pleasant, it’s like a sweet gymnastic, I am very happy.



Living in Corrèze (in France), I like walking with my grandchilden with my bicycle, but the hilly landscape is certainly attractive but difficult for my 75 springs. A friend told me about Rool'in, I tried the experiment and the result : such a pleasure !



The product met my expectations, it is convenient for a weekend away with my wheel in the trunk. Both economical and easy of use. I can do my 20 to 30 km rides without any problem, I recommend


Le Touquet

I live by the sea and the wind is often present. This electric wheel became my ally. My bike has found a second youth. and I use it for walking around, seeing my friends and for shopping nearby.



I live in Nice and I bought an electric wheel for my walks in seaside and in the vicinity. After some advice I managed to insall my wheel alone and I'm proud of that. I'm satisfied with my purchase, the wheel helps me a lot, my bike has rejuvenated :)



I have mounted the wheel on a tricyclo because of my heath problem, now I live again. I had a scooter for the disabled which it goes to 6 km / h but my friend was going faster on foot. In Spain, my health has improved and we are on flat ground, I purchased the tricyclo about two months ago for its stability. But I could not pedal more than 150 meters, with Rool'in wheel, I can do long walks, I set speed 3 of the wheel and my friend can not overtake me. I am very satisfied, I do not regret my purchase because although the bike weighs 17 kg, I roll between 15 and 18 km / h. The product is perfect and I already started advertising in Spain.



Personally, I am conquered. I will not deny that with my daughter in the child seat on the hilly roads of Toulouse region and Gers, I suffer a bit. Now with my electric wheel, I feel that all will be easier for me now !



Happy owner for 1 month of an electric wheel, I can finally ride in the countryside with my grandchildren. My legs have recovered a good dynamism, the climbs are not a problem nor wind, if only I had known it earlier ..



I live near Annecy and I have just purchased an electric wheel Rool'in. Quick Installation after advice taken with the team because I have a tandem. With my wife, we started our ride around the lake in athletic way without putting the electric assistance and then we put it on. It's very pleasant, both gentle and powerful we are seduced.

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.