Rear Rack Battery Ebike Conversion Kit


  • Install in minutes
  • Fits onto any bike
  • 70+ mile range
  • Control via app or digital display unit
  • 1 year warranty
If you do not see your tyre size, please email us at or call us on 0333 577 0343.
SKU: RRBCK 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 Motor Conversion Kit:

  • Minutes to install
  • Multiple rim sizes
  • 5 intelligent assist modes
  • 15.5mph maximum speed (can be de-restricted)
  • 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 (17.4AH) and back rack battery holder
  • 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″

Net weight: approx 9-9.5kg.

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 rack and 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)