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Spec
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Finance£3699
3699
.9991
Brompton Electric G Line 4 Speed with Roller Frame 2026 - Electric Folding Bike
The Brompton Electric G Line 4 Speed brings a new level of refinement to the world’s most iconic folding bike. Hand-brazed in London from steel for strength and durability, the G Line delivers the unmistakable Brompton ride feel. Its clever roller frame and quick-fold design transform the bike into a compact, portable package in under 20 seconds, making it easy to store, carry, or wheel through stations and buildings.
Key Features:
Hand-brazed steel frame with compact Brompton geometry
Aluminium fork with integrated mounting points
4-speed Brompton drivetrain for versatile gearing
Tektro hydraulic disc brakes with 140mm rotors
20” Brompton rims with Schwalbe G-One Allround tyres
Quick-fold roller frame for easy transport and storage
Available with 0% APR finance
Drive Information:
Motor: 250W brushless rear hub motor, 40Nm torque
Battery: 345Wh removable battery, 4-hour full charge
User Interface: LED battery display with integrated mode control
At the heart of the G Line is Brompton’s all-new UK-developed electric system. The compact 250W rear hub motor delivers smooth, reliable assistance up to 25km/h, paired with a torque-sensing bottom bracket for intuitive power delivery. The 345Wh battery, housed in a sleek removable bag, provides a practical range for daily rides and recharges in around four hours. The LED display makes it easy to toggle between power modes on the go, and future-ready connectivity allows firmware updates and integration with Brompton’s smartphone app.
The G Line’s geometry mirrors that of a full-sized bike, ensuring comfort on longer rides while remaining compact when folded. Wide, ergonomic handlebars offer stable handling, while the new in-house designed Brompton saddle supports a natural riding position suited to electric assistance. Hydraulic Tektro disc brakes deliver powerful, predictable braking in all weather conditions, a first for Brompton, and the 20” wheels fitted with Schwalbe G-One Allround tyres balance rolling efficiency with grip across tarmac, gravel, and mixed surfaces.
Designed for riders who go everywhere, the G Line includes practical touches such as mounting points for mudguards, racks, and bottle cages, along with clever in-frame storage for a toolkit. Available in three size options; small, medium, and large. The G Line adapts perfectly to a wide range of riders and styles.
Occasionally, without notice, manufacturers change product design and/or specifications.
Specification
Sizing
Pay in 3 instalments of £1233.33* or in 30 days.
Available on all full price items.
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Specification| Availability | In stock |
|---|---|
| BIKE year | 2026 |
| Category | Folding Bike |
| Colour | Adventure orange |
| Condition | Brand new |
| Brompton Electric G Line 4 Speed with Roller Frame 2026 - Electric Folding Bike The Brompton Electric G Line 4 Speed brings a new level of refinement to the worlds most iconic folding bike. Hand-brazed in London from steel for strength and durability, the G Line delivers the unmistakable Brompton ride feel. Its clever roller frame and quick-fold design transform the bike into a compact, portable package in under 20 seconds, making it easy to store, carry, or wheel through stations and buildings. Key Features: Hand-brazed steel frame with compact Brompton geometry Aluminium fork with integrated mounting points 4-speed Brompton drivetrain for versatile gearing Tektro hydraulic disc brakes with 140mm rotors 20 Brompton rims with Schwalbe G-One Allround tyres Quick-fold roller frame for easy transport and storage Available with 0% APR finance Drive Information: Motor: 250W brushless rear hub motor, 40Nm torque Battery: 345Wh removable battery, 4-hour full charge User Interface: LED battery display with integrated mode control At the heart of the G Line is Bromptons all-new UK-developed electric system. The compact 250W rear hub motor delivers smooth, reliable assistance up to 25km/h, paired with a torque-sensing bottom bracket for intuitive power delivery. The 345Wh battery, housed in a sleek removable bag, provides a practical range for daily rides and recharges in around four hours. The LED display makes it easy to toggle between power modes on the go, and future-ready connectivity allows firmware updates and integration with Bromptons smartphone app. The G Lines geometry mirrors that of a full-sized bike, ensuring comfort on longer rides while remaining compact when folded. Wide, ergonomic handlebars offer stable handling, while the new in-house designed Brompton saddle supports a natural riding position suited to electric assistance. Hydraulic Tektro disc brakes deliver powerful, predictable braking in all weather conditions, a first for Brompton, and the 20 wheels fitted with Schwalbe G-One Allround tyres balance rolling efficiency with grip across tarmac, gravel, and mixed surfaces. Designed for riders who go everywhere, the G Line includes practical touches such as mounting points for mudguards, racks, and bottle cages, along with clever in-frame storage for a toolkit. Available in three size options; small, medium, and large. The G Line adapts perfectly to a wide range of riders and styles. Occasionally, without notice, manufacturers change product design and/or specifications. Specification Frame Hand-brazed steel main frame Fork Aluminium fork with mounting bosses Headset Brompton headset Front Brake Tektro Hydraulic Disc brakes with 140mm Rotor Rear Brake Tektro Hydraulic Disc brakes with 140mm Rotor Brake Lever Tektro Hydraulic Rear Mech 4-speed Brompton (163%) Shifters Microshift Speed 4 Rims Brompton Lightweight Rims Front Hub 250W Brushless DC motor providing assistance up to 25 kmp/h Rear Hub Aluminium hub body with sealed bearings, newly developed 4 speed freehub body and hex key axle Front Tyre Schwalbe G-One All Round 54-406. Tan wall Rear Tyre Schwalbe G-One All Round 54-406. Tan wall Seat Post Small - Standard Black, Medium - Extended Black, Large - Telescopic Black Saddle Standard Wide Chainset 6061 forged aluminium crank with 50T chainring and integrated chainguard Bottom Bracket Torque sensing square taper bottom bracket Chain Hollow pin Superlight Advance Chain Pedals Wide Platform Quick Release Weight 16.1 kg Battery Size (WH) 345-wh with LED display. 4-hour full charge using included 2A charger Motor 250W Brushless DC motor providing assistance up to 25 kmp/h Sizing | |
| PNUM | 21470 |
| PRICE | £3699.99 |
| Available now | |
Reviews| Feel | Quality | Ride | Value | ||
|---|---|---|---|---|---|
| Mr Paul Worthington |  | | | |
10 |
| Previous model reviewed. Great service and speedy service | |||||
| Mr Ola Strangeways | |  | | |
2.5 |
| Previous model reviewed. The Damian Harris team | |||||
| Mr David Emson | | | | |
10 |
| Previous model reviewed. Excellent service thank you | |||||
| Dr Howard Winbow |  | |  | |
9.3 |
| Previous model reviewed. excellent comms from Damian Harris and delivery from TNT. Bike well packaged and very happy with the Brompton quality and great look of the Black Edition! Gearing range is excellent across the 6 gears but 1 | |||||
| Mr Peter Le Feuvre | | | | |
10 |
| Mr Christopher Stevens | | | | |
10 |
| Feel | 10 |
| Quality | 10 |
| Ride | 10 |
| Value | 10 |
| Overall rating | 9.9 |
Click here to view finance options.
Call 029 2052 9955 or email us and this bike could be yours today!
Size guide
As a general rule folding bikes are one size fits all catering for people from heights of 4' 10" - 6' 4" (148cm - 193cm).
Please note: Brompton bikes require that you fit a telescopic seatpost if your inside leg is greater than 35 inches (89cm).
Due to the size and weight of most bikes, a charge would apply to shipping remote regions, offshore UK and Ireland.
The courier will require a signature for your delivery. If no one is available to sign for your goods, the courier will leave a card with instruction of where you can collect it.
Working days are Monday to Friday unless otherwise stated. There may be circumstances beyond our control which cause delay and in such circumstances we will endeavour to deliver the goods as soon as they arrive from manufacturers.
To view our Shipping & Returns Policy, click here.
Our flexible finance options mean you can purchase this product with a minimal deposit (or call us and arrange a deposit that suits you). Before applying for finance, please ensure you have read the information on eligability.
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