The kit

Everything in your kit

A motor wheel, a bottle or rear rack battery with the controller inside, a side display, a pedal sensor and cables cut to fit your frame. Tap a part to see what it does.

In every kit

Motor wheel

The motor sits in the hub of a new front wheel. Your bike shop swaps it for your own front wheel.

Nothing on your frame changes for the motor. It helps you up to 25 km/h, the limit for an e-bike, and stops helping above that. The whole wheel, hub, spokes and rim, comes in black or silver.

continuous power
250W
torque
40Nm
assist up to
25km/h
complete wheel
2kg
Choose your motor wheel

Made for your front brake

Tell us which brake your front wheel has and we send the motor wheel that takes it.

  • A V-brake, the most common rim brake

    Rim brake

    Brake pads squeeze the rim.

  • A roller brake that sits on the hub

    Roller brake

    A drum inside the hub.

  • A disc brake rotor

    Disc brake

    A metal disc next to the hub.

  • No front brake

    Your bike only brakes at the back.

Wheel sizes 26 and 28 inchColoursBlackSilver
EN 50604-1 certified
Standard in the kit

Bottle battery

Sits where your bottle cage goes, low on the frame, so the bike stays balanced.

It has the controller built in and is certified to EN 50604-1, the European safety standard for e-bike batteries.

capacity
6Ah
energy
±216Wh
range
±53km

Range depends on the assist level you choose.

Built-in lockLock the battery on your bike, or take it off to charge it inside.

EN 50604-1 certified
More range

Rear rack battery

Almost twice the energy of the bottle battery, for longer rides and fewer charges.

It has a solid metal frame and is attached on top of your existing rear rack. Like the bottle battery, it has the controller built in and is certified to EN 50604-1.

capacity
13Ah
energy
±468Wh
range
±114km

Range depends on the assist level you choose.

Built-in lockLock the battery on your bike, or take it off to charge it inside.

Inside the battery

Controller

The controller is the small electronic unit between the battery and the motor. It decides how much the motor helps, based on the assist level you pick on the display. It is built into the case of both batteries, so there is no extra box on your frame.

Configure your kit
The bottle battery with its base cut open and the rear rack battery with a see-through end, each showing the controller board inside the case
In the bottle batteryIn the rear rack battery
In every kit

Side display

A small display on your handlebar, next to the grip.

  • Speedin km/h
  • Trip distancefor each ride
  • Battery levelhow much is left
  • 5 assist levelschoose how much help you get
Configure your kit
The pedal sensor fitted behind the left crank of a blue bike
In every kit

Pedal sensor

The motor only helps while you pedal.

A small sensor checks whether you are pedalling and only then switches the motor on, as the law requires. Stop pedalling and the motor stops.

  • You pedalThe motor helps
  • You stopThe motor stops
Configure your kit
A black e-bike cable with a waterproof connector at each end
In every kit

Cables cut to fit

Every cable has the right length for your frame.

There is no extra cable to coil up or tie away, so your bike stays tidy and looks like it was built this way. The cables and their connectors are waterproof, so rain is no problem.

Configure your kit
Questions

FAQ - common questions

Something else you want to know? Email us at info@boostfiets.nl.

Will the kit fit my bike?

The kit fits every bike with a standard 26 or 28 inch front wheel and a front fork that is 10 cm wide between the dropouts, the slots the wheel axle sits in. That is the standard width on most bikes.

Your bike shop checks the fit for free when you come in for installation. If the kit does not fit your bike, you get all your money back and pay nothing.

What does it cost?

From € 449 for the kit with the bottle battery. The rear rack battery adds € 79, and a motor wheel for a roller or disc brake adds € 20. Installation at a partner bike shop is free for the first 500 pre-orders, normally € 150.

How long does installation take?

Less than 1 hour, at a partner bike shop near you. You give your postcode when you order. When your kit is ready, we tell you which partner shop is nearest and you book a time there.

When will my kit be ready?

We expect your kit to be ready for installation in March 2027, and at the latest 6 months after you order. Until it is installed, you can cancel at any time and get all your money back.

Do I need a licence, insurance or a helmet?

No. The motor gives 250 W and only helps up to 25 km/h while you pedal, so your bike counts as an electric bicycle. In the Netherlands you need no licence, insurance or helmet for it.

How do I charge the battery?

A 2 Ampere charger is included. The battery comes off the bike on its own, so you can take it inside to charge it.

Can I take the battery off and lock it?

Yes. Each battery has a built-in lock, and it comes off on its own while the rest of the kit stays on the bike. You can leave it locked on your bike or take it inside, for example to charge it.

Can I ride in the rain?

Yes. The whole kit is water resistant and made to be used in the rain too.

Can my own front wheel go back on later?

Yes. Installing the kit does no damage to your bike, so it can always go back to how it was.

What guarantee do I get?

You get a 1 year guarantee on your kit.

Make your own bike electric

Choose your battery, wheel and brake in four steps. The bike and the price update as you go.

From€ 449
Pre-order offerInstallation at a partner bike shop € 150 freeOnly for the first 500 pre-orders

Delivery expected in March 2027, and at the latest 6 months after you order.

Configure your kit