Technical Specification

Brompton C Line Utility House Red Mid Handlebar

Original design refined for modern cities

The Classic All-Steel Folding Bike

The original design with the 3-part fold, handmade in our London factory since 1975. Compact and robust – it's a seriously engineered bike that's fun to ride. 

Although C Line is made to stand up to the rigours of everyday life in the city, owners have taken them on around-the-world trips, on country tours and even to the South Pole, but mainly they are used 364-days a year to improve the day-to-day (we recommend a day-off for an annual service).

A solid city rider 

The 3-speed steel bike with hub gear was the first Brompton made - a solid city rider built for the streets of London. The sealed gears are protected from grit, water and impact for longer life and less maintenance. Easy-to-use hub gears let you shift when stationary making the C Line Utility a solid choice for stop/start commutes, especially in wetter cities.

• Everything in one hub. Three internal gears, robust and low maintenance. An all-rounder for city riding
• The original design continuously evolved since 1975
• Hand-brazed steel frame and forks
• Features a front carrier block (included on every model) to carry Brompton luggage
• Safety Reflectors fitted - Dynamo or battery lighting options available
• Equipped with mudguards for all-weather riding
• Fitted with upgraded Schwalbe Marathon GreenGuard tyres, the toughest and most resilient tyre Brompton provide for their bikes.
• Mid Handlebar height with a riser profile giving a neutral/relaxed ride position for average to tall riders and a more sit-up position for shorter riders.
• Previous model name: M3L

Front Carrier Block / Luggage System

A Luggage System That Clicks

The best way to carry anything on your Brompton bike is with a Brompton bag. ​Like an extension of your bike, every bag clicks into place. The internal bag frame seamlessly connects with the Front Carrier Block (FCB).  The block is positioned on the bike's mainframe, so your steering remains smooth and stable, whatever your load.

(Image above is for illustration purposes)