The Brompton Electric G Line is built for practical, everyday riding. 20” wheels improve comfort and stability, while the rear motor delivers smooth, consistent power up to 15.5 mph. The removable 300Wh battery offers a 20-45 mile range, and Schwalbe tyres provide extra grip and puncture protection. With 4-speed gearing, integrated lights, and a quick, compact fold
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About the Brompton Electric G Line
The Brompton Electric G Line brings the best of Brompton’s folding design with a hand brazed steel main frame, making it easier to carry without compromising on strength. The smooth power assist gives you that extra boost when you need it, making longer commutes and hilly routes effortless.
This model comes with Schwalbe tyres, offering better traction and puncture resistance for a more reliable ride. Whether you're commuting, running errands, or heading out for a ride at the weekend, the Brompton Electric G Line is built to keep up with you.
Key Features
Brompton G Line Sizing
The G Line is available in three sizes—small, medium, and large—designed to suit different rider heights.
While the frame remains a single, well-balanced size, the adjustable stem and seatpost have been carefully developed in collaboration with a leading bike fit specialist to ensure optimal comfort and performance.
Brompton G Line: Smarter, Lighter, More Powerful
Brompton’s all-new compact electric system is designed from the ground up for a smarter, smoother ride. Built in the UK, it features a powerful rear motor and an advanced battery, tested to the highest standards for reliability and safety.
With seamless app integration and over-the-air updates, you’ll always have the best ride experience at your fingertips.
Electric Bike Specifications
Weight
From 16.1 kg
Folded Size
from: 28.3" / 72cm (D), 26.2" / 67cm (H), 16" / 41cm (W)
Fork
Aluminium fork with mounting bosses
Saddle
Standard Wide
Pedals
Wide Platform Quick Release
Chainset
50T
Sprockets
11-13-15-18 Tooth
Tyres
Schwalbe G-One All Round 54-406. Tan wall
Front Carrier
Large diameter front carrier block adaptor for all types of Brompton luggage
Range
20-45 miles (30-60km)
Speed
4 Speed + 3 Speed (electric assist)
Main Frame
Hand-brazed steel main frame
Grips
Ergonomic grips
Seatclamp
G Line Aluminium
Drivetrain
4-speed Brompton (163%)
Headset
Brompton headset
Wheels
20"
Mudguards
Included
Rack
Included
On Bike Accessories
G Line essential battery bag
Luggage
Essentials bag with 1.5L storage
Seatpost
Small - Standard Black, Medium - Extended Black, Large - Telescopic Black
Hinge Clamps
Self-aligning hinge clamps
Gears
4 gears
Shifters
Microshift
Lighting
AVY Integrated
Brakes
Tektro Hydraulic Disc brakes with 140mm Front / 160mm Rear
Battery
345-wh with LED display. 4-hour full charge using included 2A charger
Connectivity
Brompton Electric iOS and Android apps available for download
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.
