Brompton eBike Conversion Kit

Convert ANY Brompton into an eBike

Designed for Brompton
25/30kph max speed
Up to 50km range

New stock coming soon

Brompton eBike Kit Details

Convert your Brompton bike into an eBike with the smallest and lightest eBike conversion kit in the world. It’s easy to install and compatible with all Brompton models.

High-Torque Brushless Motor

Producing up to 40 Nm of torque, our hub motor helps you effortlessly climb hills and shorten journeys. The motor can assist an average adult up a steep 30% incline with ease. Coupled with our finely tuned controller algorithm, the silent Swytch motor has no drag – even when turned off.

Lithium-Ion Power Pack

There are two types of Power Pack, the ECO and the PRO. Their sleek and lightweight design can deliver up to 50 km of range as well as fast-charging in 2 hours. These compact Power Packs can be easily removed from your Brompton’s handlebar or luggage mount for storage and safety.

Mechanical Specifications
Electrical Specifications

Drive Type

Front hub frictionless geared motor

Fork Dropout Width

74-80mm (fits Brompton and other folding bicycles with narrow forks e.g. Dahon)

Top Speed

30km/h (restricted to 25km/h in the UK, EU, and Australia with the ability to derestrict for off-road use)

Torque

40Nm

Brake Compatibility

Rim brake

Gear Compatibility

All gear types, including derailleur and hub gears

Added Weight

1.5kg Power Pack and 1.5kg motor

Spokes

Silver or black 28x12g spokes

Rim

Silver or black doubled walled from PowerRim

ECO & PRO Dimensions

120x70x190mm

PRO Power Pack

ECO Power Pack

We custom build the motor wheel for your bike. If you have a Brompton you will just need to confirm you need a 16″ Brompton wheel. If you have a different folding bike e.g. Dahon, with narrow forks, then you’ll need to specify your wheel size. After you have placed your order, you can confirm this in our order customisation portal.

Matte-black finish

We offer a matte-black wheel in our order portal as an optional upgrade for an additional charge. The regular Swytch wheel comes with a silver motor, rims and spokes.

Throttle

Twist Throttle: The twist throttle sits on your handlebars and you twist it to supply power to the motor.
Thumb Throttle: Ideal for handlebars with little space, you can use the spring-loaded thumb lever by pressing it to power the motor wheel.

Brake sensors

Available for both cable and hydraulic brakes, these work by stopping the power to the motor as soon as you brake, even if you are still pedalling. They are great for adventure cyclists, commuting or if you often cycle through slow-moving traffic.

Spare Power Pack

Increase your range by 50 km by ordering a spare PRO Power Pack to carry with you, weighing only 2kg.

Front Motor Wheel
Power Pack
Quick Connect
Handlebar Bracket
Brompton PAS kit

In the box you will find a custom made motor wheel, a Power Pack (containing the battery and controller), a quick connect handlebar bracket, a cadence-sensing Brompton PAS kit, a charger and an instruction manual. And that’s all you need to convert your Brompton into an eBike.

As Featured On

Learn More

Our electric bike kits are fully pedal assist. Once you start to pedal, the sensor detects your speed and from this, the Power Pack works out what power to deliver to the front wheel motor. When you stop pedalling the Power Pack cuts the power to the motor wheel.

You can easily assemble your Swytch Kit without any specialist tools. Simply swap your old Brompton wheel for the Swytch motor wheel, attach the pedal sensor, and position the quick connect bracket on the handlebars. Finally, click on the Power Pack and you’re ready to go!

1 YEAR WARRANTY

Free

1-year warranty for all customers.
Hassle-free replacement parts, or collection for repair.
Free zoom support calls with our engineers based in London.

*To activate your warranty you must submit photos of your kit once its installed. Our technicians then check that the kit is correctly installed and activate the warranty, as well as ensure you have the best possible riding experience.

LIFETIME SUPPORT

Free

Once you become a Swytch customer, you will be able to access all our latest products and accessories and be able to access a lifetime of support.
Even after your warranty expires, you will be able to get cost-price replacement parts and free support.

FAQ

We ship to the UK, EU, AUS, CAN and the US. We can also ship to the rest of the world but significant additional charges for air-freight will apply.

We are now completely sold out of kits at 50% off. Sign up to the waitlist to be the first to be invited to pre-order for our next production run, which will be going live in late spring 2021. If you wish to buy a kit for RRP email us at support@swytchbike.com for more information.

No, our system doesn’t offer regenerative braking. This is because when you are cycling, approximately 95% of your energy is lost to air resistance and rolling resistance, so by adding regenerative braking the increased range would be minimal. Instead, we developed a geared brushless motor that produces zero drag, so with the Power Pack removed, you can use your bike like normal. With regenerative braking the motor would always be dragging against your pedalling, even when off.

No. Using our smooth and frictionless geared brushless motor you can still cycle as normal with the Power Pack removed.

The motor wheel weighs 1.5kg, and the Power Pack weighs 2kg.