Brompton C Line 12 Speed - Mid - Black Lacquer

The Brompton C Line 12 Speed is a British-made steel folding bike handcrafted in London since 1975. It's built around Brompton's lateral fold design, which transforms the bike from a rideable machine into a compact package you can carry onto trains, tuck under a restaurant table, or store in a car boot. The fold takes under 20 seconds once you've got the rhythm, and the 66mm roller wheels let you glide the folded bike through station corridors and building entrances without lifting it.

The frame uses precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints, giving it the durability Brompton bikes are known for. The Advanced Rear Frame is made from cold-formed micro-alloy steel, also hand brazed. The steel brazed fork completes a sturdy build that's designed to handle daily urban use without fuss. At the heart of this model is the 12-speed drivetrain, which combines a Brompton Wide ratio 3-speed internal gear hub with a 4-speed external derailleur system. This gives riders genuine range for tackling hills or keeping pace on flatter terrain, something the older 2 and 6-speed models don't quite manage as well. The 50-tooth chainring with integrated chainguard keeps your trousers clean, and the chain tensioner handles the variations in chain length that come with folding and unfolding.

The wheels sit 16 inches in diameter with double-wall alloy rims and 28 spokes front and rear, wrapped in Schwalbe Marathon Racer tyres. These are puncture-resistant tyres with reflective sidewalls, practical thinking for commuters riding in variable light. The Advanced Mudguards shield you from road spray, and the Brompton dual caliper rim brakes with dedicated levers give reliable stopping power. The 6061 aluminium handlebar has a shot-peened finish, paired with lock-on grips that use soft-compound rubber on an engineered core, keeping your hands secure in wet conditions. The Brompton saddle is 147mm long with an integrated carry handle, and it has mounts for a rear light and saddle bag if you need to add luggage.

This bike suits commuters who mix cycling with public transport, or anyone living in a small space who needs a fully functional bike that doesn't dominate the hallway. It works well for short to medium urban journeys and handles the stop-start nature of city traffic without complaint. The upright riding position gives good visibility, and the integrated mudguards mean it's ready for British weather without needing extra accessories. The 12-speed transmission makes it genuinely versatile across different terrain, lifting it above entry-level folding bikes for riders who want real gear range in a portable package.

This particular example is used and shows marks, scratches, and paint chips consistent with that condition. The fork axle hook has the end snapped off, which means it won't fully hold the bike together when folded. The bike is sold as seen with no warranty, so it's worth inspecting the photos carefully and asking questions before committing.