The name of the game with Brompton's new G Line is versatility. The classic Brompton fold makes it convenient for life in the city, while the all new frame designed around 20" wheels yields a ride akin to a full sized bike. Brompton positions the G Line is a one bike solution for riders who require a compact form factor for storage and transport, but don't want to compromise on ride quality when they venture beyond the pavement. 

 

The G Line sports an entirely redesigned frame to accommodate the 20" wheels, while still being able to fold into a roughly 29" x 27" x 16" package. For a bike with a riding position similar to many gravel bikes, this level of compactness is an incredible feat of engineering. The G Line comes with wider handlebars than any other Brompton, which stabilizes the handling and improves control on unpaved terrain. Mounting bosses on the stem and both fork blades allow riders to attach water bottle cages or other frame fixed accessories. This version comes with a rear rack for added cargo capacity and easier rolling while the bike is folded, as well as mudguards for wet weather riding. Riders will choose between between three colors (Forest Green, Adventure Orange, and Traildust White), in addition to three frame sizes (S, M, L). A sizing chart can be found below.

 

On the components side of things, the G Line is the first Brompton to come with hydraulic disc brakes, providing strong performance in wet weather and on steep descents when compared with rim brakes. The gears are sheltered from the elements in a fully enclosed 8-speed Shimano Alfine internal hub, which makes for a reliable and low maintenance shifting system. The G Line rolls on 2.1" Schwalbe G-One All Round tires, which provide improved traction and comfort on rough terrain. Brompton has equipped the G Line with premium touch-points including wide and grippy platform pedals, contoured ergonomic grips, and their Superlight saddle.

 

 

Sizing Chart: