Convert ANY bike into an electric bike with the world’s smallest and lightest Brompton electric bike conversion kit.
We recommend the ECO kit for buyers in the UK / EU who are on a budget.
We recommend the PRO kit for buyers who want more range and customisation
After you order your Brompton electric bike conversion kit, we will send a customization survey where you can choose:
Once your configurations are confirmed we will begin building your kit to order.
Conquer any hill with the high torque Swytch hub motor.
Rated for 40Nm it has enough pulling power to drag the average adult up a 30% incline without pedalling.
It may be small and lightweight but it packs a punch. The Swytch power pack is equipped with a 250W lithium-ion cell battery connected to a sine wave brushless motor controller. It will last you up to 50Km on one charge, and charges in just 3 hours.
Fit to the handlebars so you can still use the luggage block
Or fit to the luggage block so you can leave it on when you fold.
Complete wheel with spokes, rim and tape
16″ Brompton Wheel Size as Standard
Geared brushless motor with zero drag
Narrow width to fit easily into Brompton forks
Available in black or silver
All in one, instantly removable
Lithium-Ion Battery up to 7Ah 40 Miles range
Brushless motor controller
LED display with 5 power levels
Patented Universal Design
Fits easily to any handlebars
Integrated electrical connections
2-part clip on magnet disc
Stick-on Hall effect cadence sensor
Robust waterproof design
12 magnet system for smooth riding
3 hour charge time
UK / EU / USA plug compatible
Safety certified in USA and EU
Free video call support
Online walk-throughs and how-to videos
Swytch forums and discussion
Rewards for “Super Backer” customers
The Swytch kit is the easiest conversion kit on the planet to fit.
Simply remove your regular wheel, and replace it with the Swytch motor wheel.
Then fit the pedal sensor and connector bracket, connect it all together, and you’re good to go!
Installation typically takes 10 minutes and then you can Swytch instantly between bike and eBike thanks to the patented quick-connect bracket mechanism and removable lightweight power pack.
|Drive Type||Front hub geared motor|
|Dropout Width||74mm (suitable for Brompton and Dahon forks)|
|Gear compatibility||Compatible with any type of gearing, including derailleur and hub gears.|
|Top Speed||Limited to 15MPH|
(can be de-limited to approx 18MPH)
|Brake||Rim or Disc brake compatible (motor is equipped with a mount for screwing on the disc-brake disc to it)|
|Spokes||28x 12g silver spokes|
|Rim||Silver, double walled from PowerRim|
|Motor specs||250W Brushless DC geared motor (40Nm torque)|
|Battery Capacity||[35Km kit]|
36V 5Ah = 180Wh
Expected range 35Km at 125W average power output. 10-15 miles at constant maximum power 250W.
50 Km kit
36V 7Ah = 250Wh
Expected range 50 miles at 125W average power output. 20-25 miles at constant maximum power 250W.
|Controller||36V 6MOSFET Sine Wave 15A controller|
|Battery Tech||[35 Km version] Lithium Ion 18650 2500MAh cells|
[50 Km version] Lithium Ion 18650 3500MAh cells
800-1,000 expected cycles before capacity reduction
|Charger||2A 36V charger with USA plug 3-4 hour charge time (4-5 hours for 50 mile battery)|
|Front Light||Integrated front light, 500 lumens [50Km kit only]|
The Swytch kit ships to the UK, EU and USA with very competitive shipping rates via next-day couriers like DPD or Fedex. We can also ship to the rest of world but significant additional charges for air-freight will apply.
The new smaller lighter version of the Swytch kit is about to be released – the first people to place a pre-order will get up to 50% discount.
The launch date is Monday 7th October, so if you want to get the best deal sign up now and stay tuned for the launch countdown. The 50% discount is available only for the first people to order, strictly limited quantities at this discount.
The original Swytch kit with 50 miles range, in-built LCD display, and 500 lumen front light is now undergoing re-development to increase the battery capacity to 14Ah 100Km range.
It will be available as an upgraded power pack option soon after we launch the new 40 mile kit.
Our system doesn’t offer regenerative braking, because for cycling it’s pointless. 80% of the energy is used to push air out the way, so by adding regen braking the increased range would be minimal.
Instead we use a geared brushless motor that has zero drag so that you can still ride your bike like a regular bike even with the power pack off. If we added regen braking then the motor would always be dragging against your pedalling even with the power off.
We use a silent, smooth and frictionless geared brushless motor. So with the power pack removed you can still cycle like normal
The motor weighs 1.5kg, and the power pack weighs 1.5kg, so the added weight is just 3kg!
Why not try before you buy? We guarantee once you ride one, you’ll want one.