Adventure-ready
The first ever Brompton with the ride feel of a full-size bike.
Brand-new geometry, larger 20" wheels, game-changing comfort and capability. All holistically designed around the fold that made us famous.
Electric G Line
The most versatile e-bike in the world.
Coming Fall 2025.
Our most technically advanced e-bike ever
We 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.
Expertly engineered
A super smart way to move
The all-new electric system brings even greater capability to the most versatile bike in the world.
With the brand-new drive unit integrated into the frame, a Brompton first, you get everything from Bluetooth over the-air updates to easy maintenance features.
Powered to go places
Go anywhere in all weathers. With the Electric G Line’s all-new 250-watt rear hub motor, you have superb stability and traction on all ground. Choose from three levels of assistance and be gently propelled around corners, up hills, and over distances.
Rigorously tested to the moon and back (over 1,038,640 km), this e-bike confidently goes where you go
Tested for durability, serious about safety
Designed with the same systems engineering approach found in the automotive and aerospace industries, the Electric G Line sets the benchmark for quality and safety.
Our bikes are independently certified and accredited. So you can explore and store with peace of mind.
Our best battery ever
345-Wh of lightweight power. For the Electric G Line, we designed a 20% more efficient motor with the highest capacity battery ever, all to fit within the Brompton fold.
You can explore from 20-45 miles (30-60km) in one go. And when it comes to charging, it's super easy. Remove the battery pack with one quick click and plug in anywhere.
A closer look
Larger 20" wheels
Big enough for any adventure yet compact enough to fit inside the fold. The Electric G Line's solidly built 20" wheelset comes equipped with custom-made puncture-reistant tires.
And if you're looking for even more off-road performance and protection, they are tubeless-ready whenever you are.
Hydraulic disc brakes
Super dependable stopping power. The first ever Brompton to come equipped with disc brakes for all-terrain, all-weather riding.
Uphill, downhill, rough, smooth, with luggage, in the rain, you can do it all on Electric G Line.
Roller frame
Fold halfway. Steer with the saddle or tow with your handlebar. G Line stays locked together and glides like a wheelie suitcase.
Breeze through train stations, along plazas and into buildings. Nothing folds like a Brompton folds.
Brompton Advance 4-speed System
Works seamlessly with the rear hub motor and power moders to give you everything you need for steep climbs and long cruises.
Super compact, super lightweight and designed in-house to fit perfectly inside the fold.
Electric G Line sizes
G Line comes in three easy-to-choose sizes based on your height. Small, medium or large. The single-size frame has varying stem and seatpost heights, developed and tested with a world-leading bike fit expert for the best ride experience.
For more information on how to choose, watch our useful video guide.
G Line
The most versatile bike in the world.
Electric Bike App
