Person with G Line bike with split image background Person with G Line bike with split image background

G Line

The most versatile bike in the world.

G Line at a glance

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.

Available in 3 different sizes for the best ride experience.

Shop G Line
Available colours
Weight
  • From 13.9kg
Material
  • Steel
Sizes
  • S, M or L
Gears
  • 4 or 8
Folded size
  • 67cm H x 41cm W x 72cm D
  • 26.2" H x 16" W x 28.3" D
Tyres
  • Schwalbe G-One All Round
Included
  • Platform pedals
  • Front luggage adaptor
  • Reflectors

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.

Person riding G Line bike up hill

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.

Two folded G Line bikes and two people

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.
Two people riding G Line bikes down a hill

A closer look

Brompton engineering

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 size chart

" It's the only bike I know that performs equally well in both realms - let your outdoor adventures unfold."

- Simon Fellows, Cycling Weekly

Journeys on the bike

Person sat on Electric G Line Brompton Person sat on Electric G Line Brompton

Electric G Line

The most versatile e-bike in the world.

FAQs

-

What terrain can I ride G Line on?
How many gears does G Line have?
What is the warranty of G Line?
What is the reach of each size?
How do I park my G Line?
Does G Line luggage fit on my C, P, T Line Front Carrier Block?
Does it come with Dynamo?

Join our community

Stay up to date about launches, collaborations, events, offers and more. Sign up and learn more about all things Brompton. For more information, review our Privacy Policy.