This Brompton Electric G Line with Roller Frame 4 Speed Folding Bike in Size Medium is an ex-demo bike, it may have some cosmetic damage, with marks across the frame and fork. It has been used at demonstration events this season, and shows signs of use on the drivetrain, brakes and tyres. It comes with the charger. The odometer reads 780km. Please see photos for condition of the bike.
Our ex-demo bikes are fully serviced and checked to ensure your riding experience is the same as a new bike - we offer full manufacturers warranty on all our ex-demo bikes.
Expertly engineered to go where others can’t. G Line is the first ever Brompton with the ride feel of a full-size bike. Brand-new geometry, 20” wheels, game-changing comfort and capability. All holistically designed around the fold that made us famous. Ride it, fold it, store it anywhere. G Line takes you there.
Brompton designed the all-new Electric G Line bike and e-system as one. Every element is meticulously engineered from scratch to work together in the city and beyond. From brilliant on and off-road handling to easy charging and storing in small places, everything feels seamless with this bike. Stay ahead with over-the-air updates and seamless integration with Brompton's bike app for your smartphone—designed to elevate your ride to new heights.
The all-new one-bike solution for the city and beyond. Big on ride feel. Compact in size. You can ride G Line anywhere and take it everywhere. Happily delivering on all sorts of surfaces. Confident in all conditions. Comfortable hour after hour. G Line is expertly engineered to give you everything you need for the rough, the smooth and the beautiful.
Happily delivering on all sorts of surfaces. Confident in all conditions. Comfortable hour after hour. G Line is expertly engineered to give you everything you need for the rough, the smooth and the beautiful. You can run a rack, mudguards, and bags, add water bottles, and even store your toolkit inside the frame. And with the original Brompton fold, the ever-ready G Line transforms into a compact, locked package in under 20 seconds. Goes on trains. Travels in car boots. Stores in small spaces (including one-person tents).
In a world full of possibilities, G Line is your one-bike route to everywhere.
Key Features & Benefits:
- Folded Size:Goes on trains. Travels in car boots. Stores in small spaces (including one-person tents).
- Steel Frame:Built tough, with game-changing comfort.
- Brompton e-system:Robust rear motor and a cutting-edge battery, rigorously tested for unmatched reliability and safety.
Full Specification:
- Main Frame:Steel, hand brazed in London, Metallic Texturized finish
- Rear Frame:Steel
- Motor:Brompton rear hub motor
- Battery:345-wh with LED display. 5V 1.5A USB port to charge portable devices.
- Range:20-45 miles depending on terrain and rider weight
- Charger:2A UK charger - 4 hour charge time
- Fork:Aluminium fork with mounting bosses
- Number of Gears:4
- Gear Shifters:Microshift 4-speed
- Chainset:TBC
- Chainrings:50T
- Hinge:Anti-rotation hinges
- Rear Cassette:4-speed Brompton (163%)
- Rear Derailleur:Brompton 4-speed
- Bottom Bracket:TBC
- Pedals:Brompton Wide Platform with quick-release left hand pedal
- Front Wheel:20" Disc, tubeless rim tape installed
- Rear Wheel:20" Disc, tubeless rim tape installed
- Front Tyre:Schwalbe G-One Allround 20" x 54mm (54-406) (tubeless ready)
- Rear Tyre:Schwalbe G-One Allround 20" x 54mm (54-406) (tubeless ready)
- Brakes:Tektro Hydraulic Disc brakes with 140mm Front / 160mm Rear
- Handlebars:Brompton
- Handlebar Grips:Brompton Ergonomic
- Headset:Brompton headset
- Stem:3 types fixed to size, with water bottle bosses
- Saddle:Brompton Standard Wide
- Seatpost:Standard Seatpost on Small, Extended Seatpost on Medium, Telescopic on Large, Gloss Black
- Accessories:Large diameter front carrier block adaptor for all types of Brompton luggage, Rear Roller Frame rack, mudguards, AVY Integrated lighting, G Line essential battery bag
- Folded Size:From: 28.3" / 72cm (D), 26.2" / 67cm (H), 16" / 41cm (W)
- Weight:From 16.1kg excluding battery
Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.
| Small | Medium | Large |
| Rider Height (cm) | 152 - 168 | 168-183 | 183-198 |
| Rider Height | 5'0" - 5'6" | 5'6" - 6'0" | 6'0" - 6'6" |
| Stack (mm) | 677 | 687 | 697 |
| Reach (mm) | 477 | 483 | 504 |
| Seatpost | standard | extended | telescopic |
FAQ
What terrain can I ride G Line on?
It’s the most capable Brompton yet, with the ability to deliver on all sorts of surfaces, including: gravel paths, tow paths, asphalt and well-maintained off-road routes. With the feel of a full-size bike.
How does G Line fold?
With the original Brompton fold, the ever-ready G Line transforms into a compact, locked package in under 20 seconds.
Does G Line luggage fit on my C, P, T Line Front Carrier Block?
There is a unique luggage range for Electric G Line that will be available at launch. Please note that Electric C and P Line luggage will not be compatible with the new Front Carrier Block.
How many gears does G Line have?
The Electric G Line has the Brompton 4-speed gearing system with a 160% ratio/range.
The handlebar control can be retrofitted to G line electric previous models.
Warranty Information for Brompton:
All new Brompton bicycles registered with Brompton are covered by a 7-year unlimited mileage warranty against manufacturing and material defects for the main frame components, commencing from the date of sale.
All Electric parts on the Electric P Line and Electric C Line are covered by a 2-year warranty. 3 years if you register your bike.
Other non-wearing parts on the bicycle (e.g. crank arms, brake calipers, mudguards, etc.) and other parts and accessories are covered by a 2-year warranty against manufacturing and material defects.
Bicycles not registered are subject to a 2-year warranty on the mainframe components, commencing from the date of sale.
For full warranty policy please visit brompton.com