Brompton Electric G Line - 4 Speed - Medium Bar - Extended Seatpost - Rear Rack - 20" Electric Folding Bike - 2026 - forest green

Electric G-LINE - The most versatile bike in the world.

The all-new one-bike solution for the city and beyond. You can ride Electric G Line anywhere and take it everywhere. Happily delivering on all sorts of surfaces. Confident in all conditions. Comfortable hour after hour. Electric 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 Electric 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, Electric G Line is your one-bike route to everywhere.   

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.

Brompton's all-new compact electric system, engineered from the ground up in the UK. Featuring a robust rear motor and a cutting-edge battery, rigorously tested for unmatched reliability and safety. Stay ahead with over-the-air updates and seamless integration with Brompton bike app for your smartphone—designed to elevate your ride to new heights.

The compact Brompton Electric 345wh lithium-ion battery packs in the power. And when it comes to charging, it’s as easy as plugging in your phone. Remove the battery pack with one quick click. Plug into any regular socket. Fully charge in 4 hours*. Boost for less if you’re short on time.

*Reduce to just 2-hours with the Brompton SuperFast Charger (optionally available)

The Brompton folding system.

Invented in 1975 by Brompton founder Andrew Richie. Expertly engineered to transform the bike into a small, locked package a little larger than its wheels - all in under 20-seconds. Nothing folds like a Brompton folds.

Not like other bikes.

Brompton engineer an efficient solution for moving around the city and beyond. This is a bike that does more than the obvious, it answers problems owners say they didn't know they had. ‘You don’t get Brompton until you get a Brompton.

Each bike is hand-built and quality-assured at Brompton's London factory to cope with the daily demands of city riding. All Brompton bikes are powder coated in the London factory's in-house paint facility using environmentally friendly powders and energy from renewable resources powder coated.

Version with 4-speed gear, disc brakes, rear rack, light, medium large handlebar and long (Extended) seatpost.

Handlebar version Medium Wide:

• Exceptional stability – from leverage on uphills and rough ground to comfort on longer rides.
• For medium to tall riders (168 - 183cm)

Features of Brompton Electric G Line:

• Hand-brazed steel frame
• 250W e-Motiq motor system providing assistance up to 25 kmp/h
• Range up to 90 km
• Battery with USB port to charge portable devices
• Intelligent sensor and pedal assist technology
• Three handlebar types: Small, Medium and Large
• Three seatpost lengths
• 20" wheels and special puncture-proof tires
• Hydraulic disc brakes
• Aluminum fork with mounting bosses
• Versatile mounting points
• Wide platform pedals
• Ergonomic grips
• Handmade and quality assured in London (UK)
• Fast folding time of about 10-20 seconds
• Individually numbered frame with 7 year manufacturer warranty
• High availability of spare parts
• Front Carrier Block (FCB) for Brompton luggage carrier system