Brompton C-Line Folding Bike 2025

The Brompton C-Line is a British-made steel folding bike designed for urban commuting and everyday city riding. Built around Brompton's proven lateral fold mechanism, it compresses down to a compact size that fits easily under a desk, into a train luggage rack, or the boot of a car. At 11.85kg, it's light enough to carry up stairs or onto public transport without becoming a burden, yet sturdy enough for daily use.

The frame and fork are both Brompton steel, which gives the bike durability and a predictable ride feel over rough surfaces common in urban environments. The 2x3 speed drivetrain uses Brompton's own shifters and derailleurs paired with a SRAM chain, offering six gears across two chainrings and three sprockets. The 50-tooth single chainring with 170mm cranks is geared for flat to gently rolling terrain, making it well suited to city riding where steep hills are less common. The Schwalbe Marathon Racer tyres at 35c provide a balance between rolling speed and grip on wet roads.

Stopping power comes from Brompton rim brakes, which are simple to maintain and adjust. The mid-position handlebars keep you upright in traffic, improving visibility without sacrificing manoeuvrability, and the Brompton saddle is designed to match the compact geometry of the frame. The fold becomes intuitive after a few practice attempts, and the mid handlebars fold neatly without requiring tools or removal of pedals.

This bike works well for commuters who combine cycling with public transport, or anyone living in a small flat or office without dedicated bike storage. It handles the stop-start rhythm of city cycling competently and the compact wheels make it nimble through congested streets. The pre-owned example is in good condition with marks to the brake levers, top tube, crank and non-driveside chainstay from normal use. It comes with a 12-month warranty on the frame and three months on parts, backed by the CE Guarantee.