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Summary
The Brompton G Line is a versatile folding bike designed for both urban and off-road use, featuring larger 20-inch wheels and disc brakes for improved ride quality and stopping power. While it offers a more comfortable and capable ride compared to traditional Bromptons, it is heavier and less compact when folded, limiting its portability. The bike has been praised for its innovative design and adaptability but faces criticism for its off-road limitations and higher price point.
Versatile folding bike suitable for city and country
20-inch wheels and disc brakes for improved ride quality and stopping power
Innovative design with adjustable geometry elements
Available in multiple sizes and with optional electric-assist
Wide range of add-on accessories
Heavier and less compact when folded
Limited off-road capability
Higher price point
Sluggish on-road performance due to weight and tire drag
“Now, as more and more people look to escape the city, exploring roads and trails less traveled, it was the right time to take everything that makes the Brompton so special, and make it capable of going beyond the urban environment and into tougher terrain.” – Will Butler-Adams, Brompton CEO
BikerumorThe G Line is an entirely different beast and a really quite drastic departure for the brand.
Cycling News‘You’ve got to know when to hold ’em, know when to fold ’em, know when to walk away and know when to run,’ said Kenny Rogers in The Gambler. That applies perfectly to the new Brompton G Line.
CyclistFeedback?
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Sep 2025
A bigger Brompton that's great for anything from commuting to multi-day adventures
Excellent build quality and spec
Super-compact fold
Composed ride
Heavy
Overgeared for adventures
Not that stable when folded
Oct 2024 · Will Jones
It’s better off road, but to what end when it’s worse as a folding bike?
Excellent transmission
Far better brakes
Handling is much more mellow, without losing too much agility
Heavy
It's a bit big even when folded
Tame gravel only
Sep 2024 · Cory Benson
Brompton folding bikes go gravel with jump to 20” wheels, fat 2.1” tires & disc brakes for adventure riding and natural full-size bike feel…
Sep 2024 · Will Strickson
'You've got to know when to hold 'em, know when to fold 'em, know when to walk away and know
First added April 8
Last updated September 14
Not listed for 260 days