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How to choose a VAE ?

Each bike has its own characteristics, you can choose the model that suits you the best. Here is some information to help you make the right choice :

  • The type of "framework" : City, HYBRID or mountain BIKE ?

It is important to choose well the model as a function of the use that you want to have. A bicycle type city will allow you a seat more comfortable as well as a handlebar higher and closer to you. In contrast, a mountain bike or an ATV you will bring more lightness.

  • The transmission speeds : hub or derailleur classic ?

Both systems have their advantages and disadvantages, once again, it is up to you to see what you like the most.

The transmission speed with a derailleur classic allows you to not lose performance during your shift, if you have a sporty driving or that you want to use your EAB out of the city, this system is probably the most appropriate.
The transmission speed per hub is done with the system and Shimano Nexus 3, 7, or 8 (no impact on the level of the quality, it is the number of speeds that you can spend). If you intend to drive in the city, we recommend this type of system that allows you to move your speed to a halt (red lights, stop, etc) and that reduces nearly 100% the risk of derailment.

  • The engine : In the front wheel, the rear wheel or on the crank ?

The motor in the bottom bracket will be ideal for those looking for the thrill of a classic bike, however assistance will be able to give a more or less jerky. To avoid this sensation is often present on the motor pedals Panasonic, we suggest you turn to the engines cranksets Bosch, a lot more linear. The engine Bosch will adapt to the pressure and the speed at which you pedal.

The engine in the wheels, you will have a support-linear, the sensation that you are both riding. It is in the front wheel or the rear wheel will not bring real differences of sensations. Manufacturers often wish to position it in the front wheel to leave the place in the rear wheel to install a hub with speeds integrated system (Shimano Nexus, for example).

  • The battery :

Today, there are more and more batteries integrated into the frame. The main advantage of this system is, of course, that we notice much less easily as it is an EAB. These batteries incorporated into the framework are located at the center of the bike, which will bring you more balance that with a battery, for example, in the luggage rack. We find this alternative on the bikes of the range NEO or EVO (BH BIKES), for example, but also for other manufacturers such as O2FEEL.

The battery being removable you don't need to have an outlet near the place where you leave your bike. You just need to remove the battery and put it back in you put it in charge. In contrast, some models (including the EVO range of BH BIKES) allow you to plug in your battery without removing it from the bike. In both cases, you just plug it into an outlet that is classic using the charger supplied with your bike (this stops automatically at the end of the load).

If you want to carry your battery, think of its weight ! Most of the batteries available on the market are lithium-ion or lithium-polymer, in both cases, they weigh an average of 3kg, these are the ones that have the longest life span (around 800 complete cycles of load) and have no "memory effect" so don't panic if you only have half an hour in front of you, you can still supplement a little the load of your battery ! Only drawback of these batteries, which are now at the cutting edge of technology : their price.

  • Assistance : all-or-nothing or proportional ? Several levels of assistance available ?

Today there are mainly two types of assistance : assistance by a sensor of the pedaling (adapted to a ride with little relief) and assistance by the torque sensor (suitable for a trip with a lot of relief). For the first, a sensor will detect the rotation of the crank and send an electrical impulse. Today, it is the system most commonly used. For the second, it is the pressure on the pedal which is going to be taken into account in proportion to the effort. More you put pressure, you will have more assistance.

Outside of these two modes of audience, most of the EAB are now equipped with a "dial" command, or "display" that offers you the possibility to choose different levels of assistance according to the personal effort that you want to provide. You just need to select the mode of assistance that you want and the power will adjust according to what you have requested on your control dial.

It is of course possible to use the bicycle without any assistance or plugging the latter in the course of the road.

 

Now that you have all this information, it remains for you to choose the model that suits you best