Description
Brompton G Line 8-Speed
G Line. The most versatile bike in the world.
The all-new one-bike solution for the city and beyond. Big on ride feel and 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.
You can run a rack, fenders, 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.
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. The frame geometry is comparable to a full size 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 singletrack to rain-soaked cobbles. This bike does it all with ease.
Game-changing comfort
Nothing feels like G Line – the entirely new frame, all-new 20” wheels, our widest ever handlebars and tires. Everything is thoughtfully engineered to give the balanced feel of a mountain bike and all-day comfort that’s nothing short of joyous. You’ll feel the difference on every ride.
Key Details
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. It’s your one-bike solution to the city and beyond.
Roller Rack
Comes fitted with G Line fenders and roller rack as standard. With full-length coverage front and back, the fenders keep you protected from road spray, while the lightweight rack provides a stable platform for cargo. Plus, the additional wheels make your folded bike roll smoothly.
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.
Hydraulic disc brakes
Super dependable stopping power. The first ever Brompton to come equipped with disc brakes for all terrain, all-weather riding.
Wide platform pedals
The grippiest, most comfortable Brompton pedal set. The left hand pedal can be released with a quick squeeze and pull to make your folded bike even more compact. 
Wide handlebars
Stay in control. With the custom made handlebars, G Line gives you exceptional stability – from leverage on uphills and rough ground to comfort on longer rides.
Ergonomic grips
Every touchpoint between you and the bike is designed with comfort and control in mind.
Specifications:
Weight: From 32.63 lb
Speed: 8-speed
Material: Steel
Folded Size: 28.3″ / 72cm (D), 26.2″ / 67cm (H), 16″ / 41cm (W)
Main Frame: Hand-brazed steel main frame
Rear Frame: Steel
Fork: Aluminium fork with mounting bosses
Grips: Ergonomic grips
Seatpost: Small – Standard Black, Medium – Extended Black, Large – Telescopic Black
Saddle: Superlight
Seatclamp: G Line Aluminium
Hinge Clamps: Self-aligning hinge clamps
Pedals: Wide Platform Quick Release
Drivetrain: Brompton 8-speed drivetrain
Number of gears: 8 gears
Chainset: 54T
Headset: Brompton headset
Shifters: Microshift
Derailleur: Shimano Alfine Hub System
Rear Wheel: 20″
Front Wheel: 20″
Tires: Schwalbe G-One All Round 54-406, Tan wall
Fenders: Included
Lighting: Reflectors
Rack: Included
Brakes: Tektro Hydraulic Disc brakes with 140mm Rotor
Front Carrier: Large diameter front carrier block adaptor for all Brompton luggage types
On Bike Accessories: Not included
Disclaimer:Specifications are subject to change without notice.
Sizing & Geometry:
G-Line bikes are sized S, M, and L, with seatpost and stem lengths tailored to suit different rider heights. For more details on finding the right fit, see the size tables below.
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WARNING: This product contains chemicals known to the State of California to cause cancer reproductive harm
The products in this store may expose you to chemicals such as Nickel which are known in the state of California to cause cancer, and Bisphenol A (BPA) which is known to the state of California to cause birth defects or other reproductive harm.
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