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Brompton G Line

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The all-new Brompton G Line redefines what a folding bike can be. With the ride feel of a full-sized bike and the legendary Brompton fold, G Line is built for all-day comfort, effortless portability, and go-anywhere capability.

From brand-new geometry and 20" wheels to the widest handlebars and tyres ever fitted to a Brompton, every detail is engineered for balance, control and joy, on city streets or off the beaten track.


Highlights

Brompton G Line folding bike
Game-changing comfort
An entirely new frame, larger 20" wheels, and wide tyres deliver the feel and stability of a full-size bike while keeping Brompton’s iconic fold.
Built for the city and beyond
Ride it on city streets, gravel paths, and mixed terrain. G Line is designed as a true one-bike solution.
20" wheels
Big enough for adventure yet compact enough to fit inside the fold. Solidly built wheelset with custom puncture-resistant tyres.
Hydraulic disc brakes
Super dependable stopping power for all-weather, all-terrain riding. The first Brompton to come equipped with disc brakes.
Wide handlebars and ergonomic grips
Custom bars deliver exceptional stability and comfort, with touchpoints designed to keep you in control on longer rides and rough ground.
Wide platform pedals
The grippiest, most comfortable Brompton pedal set. The left pedal releases with a quick squeeze and pull to make the folded bike even more compact.
Engineered to fit you
Available in three sizes, Small, Medium, Large, with optimised stem and seatpost lengths developed with leading bike fit experts.

Tech specs at a glance

Wheel size 20"
Gearing Shimano Alfine 8-speed internal hub, 307% range
Sizes Small (474 mm reach), Medium (481 mm), Large (502 mm)
Lighting Available with or without front and rear lights
Warranty 7-year frame warranty with registration
Fold and park mode Signature Brompton fold plus self-supporting park position
Compatible luggage Supports all Brompton front carrier bags

Watch the G Line

Key Highlights



  • An entirely new frame, larger 20” wheels, and wide tyres deliver the feel and stability of a full-size bike—with the added convenience of Brompton’s iconic fold.


  • G Line is our most advanced electric Brompton yet. The integrated e-system is designed from the ground up for seamless performance, whether you're zipping across town or exploring further afield.


  • Ride it in the city, on gravel paths, or wherever the day takes you. G Line is ready.


  • Available in three sizes—Small, Medium, Large—each with optimised stem and seatpost lengths developed with leading bike fit experts for comfort and control.


  • Smooth shifting with an impressive 307% gear range, perfect for tackling hills or cruising flats.

Tech Specs at a Glance


  • 20”

  • Shimano Alfine 8-speed internal hub

  • Small (474 mm reach), Medium (481 mm), Large (502 mm)

  • Available with or without front/rear lights

  • 7 years (frame, with registration)

  • Signature Brompton fold + self-supporting park position

  • G Line supports all Brompton front carrier bags