Our most popular configuration of the Rear 250/1000w 48v E-Bike Conversion Kit by Cyclotricity. Switchable between 250w and 1000w. 16Ah Frame Mounted Battery, LCD Display, Pedal Assist and Torque Arm.


Rear 250/1000w kit with 16Ah Battery PAS and LCD Display

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  • Item Saving : £50.00
  • Item Price with saving : £99.00
  • Total offer price for both items : £907.99
  • Priced Seperately :
  • Rear 250/1000w kit with 16Ah Battery PAS and LCD Display £808.99
  • Tektro Hydraulic Brakes for E-Bikes and Kits £149.00
  • Total £957.99

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Easy Returns

If you are not completely satisfied with your purchase you can return it up to 365 days after date of purchase. *Terms & Exemptions Apply.

If you wish to return your product for any reason please contact us by phone or email. We will happily arrange the courier collection for you. 

We will accept returns up to 365 days from receipt so long as the item is in the original packaging and in original, as new/unused, saleable condition.* 

For unwanted products to be retrned to us you will need to pay for the courier. £35 for bikes, £14.99 for conversion kits and £4.99 for other products. 

If your product needs to be returned for a warranty issue we will handle all shippings costs.

*We will accept returns on all products for up to 365 days except motorbikes and mopeds for which the return period is 14 days. For these items it will be the customers responsibility to return them to the store in as new/unused, salable condition.


Please fill out and return the Returns Form with your item.

Please note that for hygiene reasons we cannot accept returns for undergarments if they have been worn. We understand that you would like to try on clothes for fit but when doing so please wear some form of clothing underneath. Otherwise it can be a very grim process for our returns staff to inspect and no refund can be given.
Once your product has been received at Powerbikes it will be inspected before a refund can be given. A refund can only be given once goods have been inspected so there may be a small delay in the refund being paid.


Motorbikes and mopeds can only be returned within 14 days of original order.

Rear 250/1000w kit with 16Ah Battery PAS and LCD Display

Season :

Brand : Cyclotricity


Weight : 0KG

This is the most popular configuration for the Rear 250/1000w Conversion kits. It comes with:

  • 16Ah Frame mounted battery good for up to 45 miles (some customers have reported more)
  • LCD display (5 levels of assistance, odometer, speedo and the means to de-restrict)
  • PAS Sensor (Attaches to your square taper bottom bracket and automatically activates the motor whenever you pedal)
  • Torque Arm (Used to strengthen the standard drop outs on your bike).

If you would like to build your own kit to your own specification please use the kit builder here.

Electric bike kit specifications:

  • Motor: 1000W gearless brushless rear hub motor, comes integrated in a wheel size of your choice.
  • Restricted to 250W and 25km/h by default as a road-legal kit
  • 1000W mode reaches maximum speed of 50km/h (31mph) once de-restricted (requires 48V battery)
  • Wheel size: 26inch,27.5", 700c, 28inch or 29er
  • Wheel material: Double walled alloy rim with reinforced spokes to withstand extra pressure.
  • Throttle: thumb type – gradual lever, the further it is pressed, the more power is provided.
  • Brake levers: Electric levers that also cut the power when applied.*
  • Controller: 30A current
  • Cables: Motor cable and system cable (designed for simplicity and minimal wiring)
  • Bag: for mounting the controller

Brake compatibility: Compatible with both disc brakes and V-brakes
Fork compatibility: 135mm between fork drop-outs (which is the vast majority of rear forks that are suitable for a derailleur)
*Note: Cable brake levers come with the kit as standard. There is now an option for Tektro Hydraulic Brakes with cut of switches for an additional £99

Pedal Assist System

A Pedal Assistance System is a device that senses your pedalling and makes your kit give automatic assistance, i.e. you do not have to press the throttle throughout your journey. It consists of a sensor which attaches to your bottom bracket and an advanced LCD handlebar monitor which, not only gives you five levels of power, but also displays your speed, journey distance, time, average speed and many other readings.The LCD computer is required to unlock the full power of 1000W for off-road use.

IMPORTANT: If you wish to fit a Pedal Assistance System with your eKit, the bottom bracket on your bike needs to be a Square Taper type (which is the most common bottom bracket on ordinary bikes). If you don’t have a square taper bottom bracket, you may need to replace it as well as the crank arms to make your bike compatible with the PAS. If in doubt, please consult a bike service shop on how to fit a square taper bottom bracket on your bike.

1000W Rear Drive
This category has been developed purely for the thrill seekers among us. Since it’s a 48V system, the battery makes it more costly than its counterparts. Having said that, it offers an adrenaline fueled ride rarely found in conversion kits. Unlike the 500W version which was mainly created for on-road use (and some occasional off-road fun), this kit has been purely developed for an enhanced off-road experience packed with torque and power. This kit will propel you to speeds up to 50km/h (31mph) and climb incredibly steep hills.
This kit is recommended for the outdoorsy spirit, the mountain biker and you who appreciate the exhilaration that comes with speed and power. We’ve developed this configuration specifically for you and made this kit especially to satisfy the thrill you seek!
Please note that the kit will be supplied restricted to 250W by default and requires the LCD to de-restrict it to the full 1000W for off-road use.

Things to think about before purchasing this rear drive conversion kit:

– The rear drive motors are only compatible with a 3speed, 5speed, 6speed, 7speed, 8speed, 9speed or 10speed freewheels (not compatible with a cassette type sprocket, i.e. if your bike is fitted with a cassette, you can purchase a freewheel togther with your kit for it to fit). If you have a single speed bike, you can install a 3speed freewheel for compatibility (and use only one of the 3 speeds).

If you require freewheel please select one from here.

– The rear forks on your bike need to have 135mm clearance between the drop-outs (which is the case with the vast majority of bikes)

– The LCD computer is necessary to unlock the full power of these high power motors.

– The electric brake levers supplied with the kits are mechanical.* I.e. they are not compatible with hydraulic brakes or brakes that are combined with gear levers. However, installing the brake levers are not a necessity and the kit will work fine without them. Moreover, the throttle is spring-loaded, i.e. it will cut the power whenever the thumb is released from it for safety.


The kit comes as standard with cable brake levers. The levers have a cut off switch built in which cuts the motor. It is not 100% necessary to fit these as the kit will work fine without them, the motor stops when you stop pedaling or let go of the throttle. However they are a handy safety feature.

There is now an option for Hydraulic Brakes. We can supply Tektro E-Bike Hydraulic Brakes with cut off switches for £99 when bought with this kit. Tektro Hydraulic Brakes come as: Brake Levers, Hose, Calipers and 180mm disc. Brakes are attached to European Spec so depending which side you prefer brakes to be on you may need to swap the brake hoses around.

Frame Battery
With its sleek design, the frame battery is made to pack an enormous amount of power in a small package. It’s mounting position on the bike down-tube creates a low centre of gravity for light manoeuvrability and an enhanced feeling of an overall lighter electric bike.

– Suitable for our 1000W motor system
– Up to 40miles on one charge*
– Range could drop down to 20miles once de-restricted to full power
-USB Port: Inactive

Torque Arm

Torque arms are there to help your bicycle’s dropouts (the part of the bike that holds onto the axles of the wheels) resist the torque of an electric hubmotor. Normal bicycle wheels don’t apply much torque to the bicycle dropouts. When you add a high power motor there can be much more torque applied than the the dropouts were originally designed to take.



To save paper and reduce waste we do not supply instructions with these kits. Instructions are available to download in the Technical Information section below.

Technical Information

We do not supply paper instructions as it is extremely wasteful. Many people do not look at them and just put them into general waste instead of recycling. As part of out continued approach to promoting sustainability all the instruction manuals for conversion kits are available to download here.

If you have any questions or difficulty installing the kits please don't hesitate to get in contact and we will be happy to help.


If you would like us to send the de-restrict instructions for the rear conversion kits please download the de-restrict terms and email a signed copy to info@powerbikes.uk


De-restriction And Throttle Terms of Use

Pannier Rack Installation Guide

Cyclotricity Kit Installation Guide 2nd edition

eKit LCD Dashboard User Manual 3rd edition

eKit LED Dashboard User Manual 3rd edition

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