Expertly engineered to go where others can’t. The 2026 Brompton G Line with Roller Frame in Space Black 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.

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, mudguards, 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.