Bottle Battery Ebike Conversion Kit


  • Install within minutes
  • Fits onto any bike
  • Control via app or digital display unit
  • Anti-theft tracking
  • 1-Year Warranty
If you do not see your tyre size, please email us at or call us on 0333 577 0343.
SKU: EFBKP Categories: ,


Convert your bike into an eBike in 2 simple steps

Electric Bike Conversion Kit

Revolutionise the way you cycle. This easy to install and all-inclusive kit converts your bike to a smart electric bike.

Whether you’re looking to get an extra boost riding up those hills, or seeking to add a touch of fun and ease to your daily commutes, our eBike hub motor can help you on your journey.

This drive motor kit is compatible with any bike such as mountain bikes, road bikes, commuter and folding bikes.

The Ultimate e-Bike Conversion Kit:

  • Minutes to install
  • Multiple rim sizes
  • 5 intelligent assist modes
  • 15.5mph maximum speed
  • 250W high-speed motor
  • Free mobile app available

What’s Included in the kit?

  • 36V 250W motorised front wheel with tyre
  • High-quality lithium battery (8.7AH)
  • Charger
  • Mobile phone holder
  • wired thumb throttle (plugs into battery)
  • Tools that are required for installation
  • Instruction video for installation
  • 1-year warranty
  • Optional digital display unit

Wheel sizes: 16″, 20″, 24″ 26″, 27.5″, 28″ (700c), 29″

Wheel weight: approx 4-5kg. Battery weight: 1.34kg.

Any Questions? We’re Here 7 Days a Week. Call Us Now 0333 577 0343.

If you can change a tyre, you can install the Easi-Fit eBike Kit. It’s that simple.

So, why wait? Upgrade your regular bike into a high performing e-Bike in just 3 easy steps:

1) Replace the front wheel with our wheel.

2) Install the battery (easily fits into place) and connect the cable to the motor.

3) Install either our mobile phone holder OR our digital display unit. Connect up via bluetooth and away you go!


What does the digital display unit do? 

  • Displays speed, distance travelled, level of assist, battery pack power level.
  • Allows you to set the level of assist, from 0-99.

What features are included in the free mobile app?

  • Displays speed, distance travelled, uphill mileage, level of assist, power output, outside temperature and battery power level.
  • Choose between 5 different biking modes: Commute, leisure, manual, exercise or climbing.
  • Manually set your level of assist from 0-99.

Any Questions? We’re here 7 days a week.

Ride smarter with powerful assist mode technology.

With over 5 years of intensive research and development, the e-Bike assist system has been carefully optimised to deliver a revolutionary cycling experience.

Smart, versatile and intuitive technology, there’s a reason why cyclists love it. The 5 assist modes available on the app adapt to your speed, acceleration and slope of the road ahead.

5 modes available on the Thumb Control and App:

Manual Mode:

From here you can set your pedal assist level from 0 to 99 by dragging your finger across the screen. 0 stands for no assist while 99 stands for the strongest assist.

Commute Mode:

Under this mode, you will have a stronger assist level consistently throughout your journey, allowing you to commute with ease.

Leisure Mode:

This is designed to give you a leisurely ride with more pedal-assist coming into effect as the journey progresses.

The further into the ride, the more pedal assistance you receive. Each wave is half an hour, so at the end of each wave, the assist level will become stronger.

Exercise Mode:

This mode is designed to give you more exercise benefits from your ride so has a smaller assist output.

Each wave is 30 minutes in duration. The output starts high, then drops to a very low level, and picks up again towards the end of the 30-minute cycle.

Climbing Mode:

Easi-Fit removes the tough parts so that you can just enjoy the fun parts of biking.

In this mode, you can set the level of pedal-assist to depend on the gradient of the hills you’ll be riding up. The pre-set assist level will only cut in if the hill is above the set gradient.

For example, when you set a 40% pedal assist level and a 6 degrees gradient, the motor will only kick in to give a 40% pedal-assist when you are riding up a hill with a 6 degree or more gradient.

We never want to think about our bike being stolen, but to help prevent it, the kit has an anti-theft option.

Press the “padlock” icon on the main application screen – this will activate the alarm setting. If someone tries to move your bike, the alarm will sound and the wheel will lock in reverse. (Just remember to tap the padlock icon to deactivate when you want to ride the bike).

With over 5 years of intensive research and development, the e-Bike assist system has been carefully optimised to deliver a revolutionary cycling experience. This product is a versatile and cost-effective solution for those looking to enhance their biking experience.

A smart, safe and durable electric bicycle:

  • Anti-theft device: If your bike is stolen, the app will not only disable your bike, it will also track the location of your bike and help you recover it.
  • The micropower system offers intelligent assistance with intuitive induction brakes that have a response time of 10ms.
  • The Arm vortex-M3 main chip is a 6-axis gyroscope motion processing chip.
  • The 18650 power lithium battery offers consistency, high energy density, and faster charge/discharge performance.
  • Tried and tested over time, 80% capacity remains after 1000 cycles, making this high-quality lithium batter’s lifetime more than 5 years.
  • The bottle battery is small in size and shaped like a water bottle. It’s removable and super easy to take the battery out of the bottle to charge and you can even charge your phone through the USB port.

If you’re looking for the safest, most reliable and best e-bike conversion kit to transform your bike, this could be the product for you.

30-day money-back guarantee

We want all of our customers to be happy and we know you’ll love riding your newly converted electric bicycle. But, if for some reason you’re not fully satisfied with our front hub electric bicycle motor conversion kit, you can put it back in the post to us and we’ll refund you the full price of the kit.

Join hundreds of our happy customers and pre-order our incredible DIY eBike drive motor conversion kits today!

Additional information

Wheel Diameter

16", 20", 24", 26", 27.5", 29", 700c

Tyre Width

1 3/8, 1.5, 1.7, 1.75, 1.9, 1.95, 2, 2.1, 2.125, 2.2, 23c, 25c, 28c, 32c, 35c, 37c, 38c, 40c, 42c, 44c, 45c, 47c

Control Option

App Only – No Digital Display Unit, Add digital display unit (+ £50.00)

How big is the battery?

The battery is 300mm x 88mm.

How long will the battery last?

The battery is a high quality power lithium-ion battery, 36V, 5.8AH. It will last approximately 60km. But that does depend on various factors, including terrain, slope, your weight and how much you pedal.

Can I buy a spare battery?

Yes. We find the vast majority of people don’t need a spare, but if you want to go on very long bike rides you can charge a spare battery and take it with you. You can purchase a spare battery in the shop page of this website.

How long does the battery take to charge?

Approximately 3 hours at the mains. The battery comes with a charger.

How does the pedal assist work?

The kit has an “intelligent assist control module” which works in conjunction with a gyroscope calculating the power you need. It will assist you automatically when you are pedalling. The motor will not work until the speed reaches 5km/h. The system will increase the power when you go uphill and will shut down the motor when you are going downhill. When you brake, the system can detect the decrease of the speed, and will stop the motor.

If you push the thumb throttle the bike will be fully driven by electric power, but when you release it the pedal assist system will kick in again automatically.

How much does the kit weigh?

The entire kit weights 6.5kg. The battery is approximately 1.5kg.

Can I put the battery in my pannier instead of attaching it to the crossbar?

The battery holder must be positioned at an upward slope, therefore it’s best to be fixed on to your bike-frame. This is because there is a gyroscope inside it, which is part of the pedal assist technology.

What’s included in the kit?

Wheel with 250W motor, battery & holder, thumb controller & digital display, mobile phone holder, spare brake disc, instruction booklet, tools for installation (allen key and wheel spanner).

Do I have to use the thumb controller?

No. The thumb controller is your choice. We find that some of our customers prefer not to use the thumb controller and that’s fine, the bike will automatically work on the pedal assist mode.

Do I need a mobile phone to operate my bike?

No, using your mobile phone is your choice. If you want, you can download the WePower app, where you can set the pedal assist mode, see the speed, temperature, battery level and mileage covered. But this is entirely optional, and the bike will function perfectly without it.

What if I don’t know my wheel/tyre size?

This is a common question.  Your tyre size should be written on the side of your tyre.  There will be a series of numbers showing the diameter and width.  It will look something like this: 700c x 38.  Or 26” x 1.95.  Occasionally different cycle manufacturers will use a different scale.  If you have any problems working out your tyre size, please call us on 0333 577 0343.  Alternatively, you can email us a picture of the writing on your tyre to

My bike has disc brakes – will the kit still work?

Yes, the kit fits both V brakes (sometimes called rim brakes) and disc brakes.

Why is there a maximum speed of 15.5mph (25 kph)?

The legal speed limit for e-bikes in the UK is 15.5mph. Therefore the kit has a default maximum setting of 15.5mph. It is possible to manually increase the speed up to 35kph (22mph), but this should only be done on private land.

Does the kit accommodate hydraulic breaks?

Yes it does. The kit will automatically sense when the brakes are applied and cuts the power to the motor.