





Why buy bike from us?
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.
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.
Features
- Nothing feels like G Line – the entirely new frame, all-new 20” wheels, our widest ever handlebars and tyres. 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.
- The most versatile bike in the world: Expertly engineered to go where others can’t. G Line is the first ever Brompton with the ride feel of a full-size bike.
- 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 tyres.
- 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 14.8 kg
- 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-sspeed drivetrain
- Number of gears: 8 gears
- Chainset: 54T
- Headset: Brompton headset
- Shifters: Microshift
- Derailleur: Shimano Alfine Hub System
- Rear Wheel: 20"
- Front Wheel: 20"
- Tyres: Schwalbe G-One All Round 54-406. Tan wall
- Mudguards: Included
- Lighting: Reflectors
- Pump: Not included
- Rack: Included
- Brakes: Tektro Hydraulic Disc brakes with 140mm Rotor
- Front Carrier: Large diameter front carrier block adaptor for all types of Brompton luggage
- On Bike Accessories: Not included
Size Guide
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.
Note: Manufacturer may reserve the right to change the specification of that listed or shown on this page.
This could include but not limited to specification or colour
Manufacturer's Code: 18R044B00COG0Q0FG0050620BB4400, 38R044B0ACOG0Q0FG0050620BB4400
Barcodes: 5053099088331, 5053099095681