The most versatile bike in the world.
Coming 2025.
Nothing feels like G Line – the entirely new frame, larger 20” wheels, our widest ever handlebars and tyres.
Everything is thoughtfully engineered to give the balanced feel of a full-size bike and all-day comfort that’s nothing short of joyous. You’ll feel the difference on every ride.
We created G Line to be the best one-bike solution for the city and beyond, and then we made it a Brompton.
It rides like a full-sized bike, yet it transforms into a compact package that stores and travels easily. So you can go anywhere.
Big enough for any adventure yet compact enough to fit inside the fold. The G Line’s solidly built 20” wheelset comes equipped with custom-made puncture-resistant tyres.
And if you’re looking for even more off-road performance and protection, they are tubeless-ready whenever you are.
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 G Line.
A solidly built 8-gear system that covers all grounds. Super simple to use and brilliantly low maintenance. There’s just one trigger on your handlebars. And the gears are tucked away inside your rear wheel hub - protected from water, mud, and impact.
The grippiest, most comfortable Brompton pedal set. For riding on all kinds of ground.
And if you want to make your folded bike even more compact, you can remove the left-hand pedal with a quick squeeze and pull, then stow it securely behind your handlebar.
From a go-anywhere bike to a compact package in under 20 seconds. It stores easily. Tucks in car boots and campers and even one-person tents.
There is no need to lock and leave your G Line – it fits into your life indoors and out.
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 Bags sit securely on the front of your bike with one quick click. The unique mounting system places the weight on your frame instead of the handlebars. So when carrying loads, your ride remains brilliantly stable.
Built on fifty years of expertise, Brompton bikes are made for real life and a long life. G Line’s production is a labour of love, with each steel frame handmade and quality assured in our London Factory.
With our 7-year frame warranty, you can ride with peace of mind.
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.
The most versatile e-bike in the world.
Coming 2025.
