The Electric C Line 4-Speed delivers Brompton’s classic fold with a boost of electric power—perfect for daily riders, multi-modal commuters, and urban explorers. With Smart Pedal Assist, a lightweight 300Wh battery, and Brompton’s Superlight 4-speed gearing system, it’s quick off the mark, easy to charge, and fits effortlessly into life on the move.
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Every eBike is assembled by our mechanics before preparing the bike for collection or delivery.
Stay Fully Charged
In addition to a 2 year warranty on eBikes, we offer servicing, maintenance and support for life.
About the Brompton C-Line 4 speed
Built on Brompton’s iconic steel frame and updated with a Superlight 4-speed drivetrain, this Electric C Line keeps things simple, efficient, and agile. The gearing is designed to cover your city needs—with just enough range to handle bridges, ramps, and gentle hills, without overcomplicating your ride.
The 250W front hub motor is compact but effective, paired with a fine-tuned torque and cadence sensor in the bottom bracket. Select one of three assist levels using the onboard controls or the Brompton Electric App for a connected, intuitive ride.
Key Features of the Brompton C-Line
Its 300Wh lithium-ion battery offers up to 45 miles of range and detaches with a single click. Weighing under 3kg (with integrated carry bag), it’s simple to charge from any wall plug.
With integrated dynamo-powered lights, puncture-resistant Schwalbe Marathon Racer tyres, full mudguards, and a new Advance Roller Frame, this eBike is ready to slot into your everyday routine.
And yes, it’s approved for use across the entire London transport network, including Tube, trains, and buses.
Electric Bike Specifications
Battery
300Wh 36V with LED display. Range 20-45 miles . 5V 1.5A USB port to charge portable devices. 4-hour full charge using included 2A charger
Bottom Bracket
Integrated sealed bearing BB with cadence and torque sensor
Brakes
Brompton Dual Pivot Calipers
Chainset
6061 forged aluminium crank with 50T chainring and integrated chainguard
Connectivity
Brompton Electric iOS and Android apps available for download
Derailleur
Brompton Chain pusher
Drivetrain
4 inline sprockets, no hub gear, 163% range.
Folded Size
25.3" H x 23'' W x 10.6'' D
Fork
Reinforced Electric specific steel brazed fork
Front Wheel
Single wall rim, 250W Brushless DC motor providing assistance up to 25 km/h
Grips
Lock-on grips with soft-compound rubber adhered to an engineered core
Headset
Brompton headset
Hinge Clamps
Composite hinge clamp levers
Lighting
Dynamo
Luggage
Essentials bag with 1.5L storage Optional: 20L City bag available separately
Main Frame
Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints
Material
Steel
Mudguards
Included
Number of gears
4-speed
On Bike Accessories
Lezyne Pump and Mounts
Pedals
Brompton Folding left hand and non-folding right-hand pedals
Pump
Brompton pump with flexible hose compatible with Schrader and Presta Valve
Rack
Not included
Range
20-45 miles
Rear Frame
Hand brazed cold-formed micro-alloy steel tubing
Rear Wheel
Double wall rim, 28 spoke, Brompton Wide ratio internal gear hub
Saddle
Standard
Seatclamp
Composite seat clamp and rear frame clip in matt black finish
Seatpost
Extended, Black (35")
Shifters
Brompton 2 speed trigger shifter
Speed
4-speed
Sprockets
4 inline sprockets, no hub gear.
Tires
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall
Tubes
Schrader valve
Weight
From 16.6 kg
Delivery & Aftercare
Built & checked by expert mechanics
Our experienced eBike technicians will build and inspect your bike before dispatch.
No hassle return in the first 30 days
If you aren't satisfied with your purchase, we accept returns providing the bike is in showroom condition and has covered under 5 miles.
Free & Fast Delivery in the UK
We provide free tracked delivery on all eBikes (excluding eCargo's).
Recommended Service Plan & Guarantee
Free 6-week health check & recommended service plan tailored to you. 2 years manufacturers warrantee on all eBikes.
Related eBikes & eBike Accessories
Insurance Available
LAKA's comprehensive eBike insurance offers protection against theft, damage, loss, and more. You get 30 days free insurance by using the code FULLYCHARGED. Elevate your security further with our Gold & Diamond rated eBike locks. For added assurance, consider our optional GPS trackers for select bike models. Ride confidently knowing that your eBike is safeguarded.
What the expert says
The hiplock d1000
The Hiplok D1000 is a diamond rated lock that is resistant to angle grinders and has been widely acclaimed as the best eBike lock on the market.
LAKA
LAKA are a collective insurance company that offers competitive pricing for eBike specific insurance that empowers the rider.
GPS Trackers
GPS trackers with the Bosch Smart System & PowUnity work for Bosch powered eBikes, please get in touch with us if you are unsure exactly what tracker is suited to your bike.
Free eBike Delivery
Once you have placed an order with us, our team will handpick your items and schedule them into our workshop. Our specialist eMechanics will build & inspect your eBike before preparing it for collection or delivery.
FedEx Courier Delivery - Free*
eBikes are dispatched within 1-3 working days when in stock at Fully Charged. Your eBike will be inspected & tested before being safely packaged and sent out to you. Attach the pedals with a spanner, then straighten & tighten your handlebars with an allen key before riding. You will receive updates via FedEx once the bike is en route.
*Free delivery does not include eCargo bikes. For eCargo bike delivery options, please get in touch.
Store collection - Free
Store collection is recommended if you are local to any of our stores. Your bike will be built, fully charged and ready to ride away. Our team can give you a detailed handover in store to help you get set up with everything you need.
Premium Home Delivery - Price is Postcode Dependent
Receive your bike fully built ready to ride. A member of the team will assist setting up everything you need with your bike. Please select the free courier delivery at checkout, and we will be in touch with the estimated cost, and to arrange the handover.
Returns Information
Our team is dedicated to making sure you are happy with your Fully Charged purchase and shopping experience. If for any reason you wish to return or exchange an item, you can find further details on how to do so below.
Cycle to Work & Financing
Ride now and pay later. We offer a range of payment options including 0% Finance and Cycle-to-Work schemes.
Financing
Check out the finance calculator to get a glimpse of the monthly payments, depending on your deposit and the duration of the loan.
Cycle to Work
We provide a variety of Cycle to Work schemes that allow you to save up to 42% through a salary reduction. Now, you have the option to use Cycle to Work directly from your shopping cart.
Price Matching
We work hard to offer competitive prices alongside specialist advice and a great aftercare experience.
If you find the same bike cheaper at a UK retailer with a physical store, let us know. The item must match exactly (model, size, colour), be in stock and available to buy.
We'll do our best to match the price – and you’ll still enjoy the Fully Charged experience.
eBike Sizing
eBike suggested rider height can be found when selecting your frame size from the dropdown.
If this information isn’t available, or you’d like additional confirmation, please get in touch with our eBike specialists who can help make sure you’re getting the right size.
