BionX Commonly Asked Questions NYCeWheels.com

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BionX Commonly Asked Questions

Commonly Asked Questions
Will the BionX kit require any additional or custom items for my recumbent bicycle?

If I don?t feel comfortable with the installation, will NYCewheels install the kit on my bicycle?

Is there a warranty on the item if I install it myself?

What range can I expect with my BionX system?

Where will I mount the battery?

Do I loose the ability to use my existing shifters and gears?

Can I convert my racing bicycle to an electric bicycle using the BionX system?

I read that the bike recharges itself; does this mean that it does not need to be plugged in?

My bike has a Shimano Brake/shifter combination unit, will the system still work?

Will the BionX kit require any additional or custom items for my recumbent bicycle?


The only requirement for a recumbent or custom sized bicycle is longer wires between the motor, the controller, and the battery. However, no addition setup time is required, custom wire sizes are available.

If I don?t feel comfortable with the installation, will NYCewheels install the kit on my bicycle?

NYCewheels offers an installation option in which we professionally install the kit on your bicycle for a fee of 150 dollars. The bike is not shipped until it is tested and is in working condition.

Is there a warranty on the item if I install it myself?

All BionX systems are guaranteed for 2 year against failures due to manufacturing faults. The batteries also have a one year warrant against failure.

What range can I expect with my BionX system?

Distances will vary with rider weight and conditions as well as how much assistance is provided by the rider. The tables calculated below are with a 150lb rider on a flat surface in a windless environment.

Where will I mount the battery?

Most batteries are installed using the threaded holes in the frame usually used by the water bottle holder or on the rear bicycle rack. However, any option is possible, BionX systems installed on folding bikes without racks or water bottle holes have used custom made clamps which bolt directly to the bicycle frame. See our ?BionX Bike Fit? guide on our website to explore the range of installation options

Do I loose the ability to use my existing shifters and gears?

Do I loose the ability to use my existing shifters and gears?

The BionX rear wheel/motor fits either a 7, 8, or 9 speed freewheel. Cassettes can not be installed. The BionX system will not work on a bike with an internal hub.

It can be difficult to determine whether an existing bike has cassette or freewheel gearing. The easiest solution is to count the number of gears on your back wheel and then order the freewheel with the same number of gears. Your shifters and current derailleur will still work on the BionX system.

Can I convert my racing bicycle to an electric bicycle using the BionX system?

We do not recommend installing the BionX system on racing bikes, by which we mean bikes with narrow chain stays and brakes intended for very thin low profile rims and tires. The rims on the BionX system are wider than those found on racing bicycles and will require a large amount of custom work to adapt to a racing bike. In addition, any of the benefits of a racing bike will be compromised by the weight of the system.

I read that the bike recharges itself; does this mean that it does not need to be plugged in?

The bike recharges itself when you brake (regenerative braking) as well as during generation modes. However, the amount of charging power coming from the regeneration is small compared with the power from the wall. On an average ride, with moderate braking and generation used on the downhill sections, the batteries will be charged from 5-10%. The regeneration is enough to make a significant difference in range, but not enough to substitute for charging from the wall.

My bike has a Shimano Brake/shifter combination unit, will the system still work?

The BionX system requires that a magnet be placed on the brake lever and a sensor on the handle so that the controller gets a signal when the brakes are applied. With non standard brakes, such as disc brakes or Shimano shifter/brakes some jury-rigging will have to create a setup that works with different brakes. If no suitable brake system can be created, the wire can be unplugged and the system used without the benefit of regenerative braking.