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G-Line
Built to go where traditional folding bikes can’t. G Line is the first Brompton to deliver the ride feel of a full-sized bike, featuring an all-new geometry and 20-inch wheels for game-changing comfort and performance — perfectly combined with Brompton’s signature folding design.
| Colors |
|
|---|---|
| Weight | From 13.9kg |
| Frame Material | Steel |
| Sizes | S, M, or L (Small / Medium / Large) |
| Gears | 8-speed (featuring Shimano Alfine internal hub gear system) |
| Folded Dimensions |
67 cm (H) × 41 cm (W) × 72 cm (D) (approximately 26.2" H × 16" W × 28.3" D) |
Brompton G Line
8-speed | Official price: NT$125,000
Adventure Orange
Space Black
Traildust White
Forest Green
Color options:
Game-changing comfort
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.
Big on ride feel, compact in size
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.
The most capable Brompton ever
Rigorously tested over 250,000 km, first to meet industry standards, then to meet ours, G Line goes where others can’t. Now, you can confidently tackle everything from dusty single track to rain-soaked cobbles. Built tough with disc brake stopping power, this bike does it all with ease.
A closer look
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Larger 20" wheels
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 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 G Line. -
Shimano Alfine Hub Gear
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.
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Wide platform pedals
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. -
Wide handlebars
Stay in control. With the custom-designed handlebars, G Line gives you exceptional stability – from leverage on uphills and rough ground to comfort on longer rides. Expertly engineered to fit inside the fold.
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Ergonomic grips
Every touchpoint between you and the bike is designed with comfort and control in mind.
The all-new Brompton Ergonomic Grips are developed and tested by us for G Line, so you have the right cushioning and support exactly where you need it. -
Brompton Superlight Saddle
Brompton-designed saddles enhance your ride and more. The Superlight Saddle carbon base quietens vibrations and reduces pressures.
The carry handle under the nose makes lifting and rolling your folded bike even easier. And when it comes to adding Brompton Luggage or lights, the mount and loops are all in place.
Brompton engineering
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A fold designed for life
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. -
Moving with this folded bike is easy
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.
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Carry everything you need
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.
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Built tough
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 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.
FAQs
Can I test ride a G Line?
We’re planning to host test ride events where you’ll have the chance to experience the G Line
firsthand and feel its unique ride for yourself.
What terrain can I ride G Line on?
The G Line is the most capable Brompton yet, built to handle a wide range of terrains with ease,
including:Gravel paths、Asphalt roads、Well-maintained dirt trails
At the same time, it retains the stable and natural ride feel of a full-sized bike.
At the same time, it retains the stable and natural ride feel of a full-sized bike.
How many gears does G Line have?
The G line has 8 gears with a 307% gear ratio/range. It has a Shimano Alfine 8-speed hub gear.
What is the warranty of G Line?
The frame comes with a 7-year-warranty once registered.
What is the reach of each size?
- The small has a reach of 474mm
- The medium has a reach of 481mm
- he large has a reach of 502mm
How do I park my G Line?
The G Line supports itself when in park mode. Simply flip the rear wheel under and see the magic.
Does it come with Dynamo?
No.
