Brompton C Line 6 Speed Mid Bar Folding Bike, Steel Frame

This is a Brompton C Line 6 Speed Mid Bar folding bike with a steel frame, offered as an ex-demo model in excellent condition with only minor wear on the drivetrain. Originally priced at £1449, the bike represents the classic British folding design that works well for commuters and urban riders who need to combine cycling with public transport or storage in tight spaces. The steel frame is built to last, paired with a steel brazed fork and Brompton's caged headset bearings for smooth, dependable handling over time.

The 6-speed transmission combines a 3-speed Sturmey Archer wide ratio internal gear hub in the rear wheel with a 2-speed front derailleur, giving a practical spread of gears without the maintenance demands of a traditional multi-speed cassette. The front chainring is a 50T 6061 forged aluminium crank with an integrated chainguard to keep your trousers clean, fitted with 170mm cranks. Shifting happens via Brompton's dual lever system—one shifter controls the hub gears, the other the front derailleur. The drivetrain uses a square taper bottom bracket and direct mount Brompton derailleurs designed specifically for the folding mechanism.

Braking is handled by dual pivot rim brake calipers on both front and rear, controlled by flat bar cable brake levers that integrate neatly into the handlebar setup. The Mid alloy handlebar is paired with Brompton lock-on grips for a secure, comfortable hold. Both wheels use double-wall rims laced with 28 spokes to Brompton hubs, shod with 349 x 35C Schwalbe Marathon Racer tyres that offer puncture resistance and reflective sidewalls for visibility in low light. The seat is a standard Brompton saddle on a black seatpost, and the pedals are superlight CNC aluminium units with a left-hand quick-release folding mechanism that helps compact the bike when folded.

For commuters and daily urban riders, this bike handles the repetitive fold and carry routine with Brompton's proven design. The mid-bar position offers an upright riding stance suited to stop-start city cycling and good visibility in traffic. The combination of internal gearing and small 16-inch wheels keeps the fold genuinely compact and portable, though it does mean you'll need to spin the legs a bit more on longer flat sections compared to larger-wheeled bikes. For anyone mixing short rides with train journeys, office storage, or flat living spaces, this steel-framed folder is a practical tool that doesn't ask you to compromise on build quality or reliability.