C Line 12 Speed
C Line 12 Speed
The Brompton C Line 12-speed is the ultimate city companion, blending iconic British craftsmanship with cutting-edge portability. Proudly handmade in London since 1975, our bikes transform from a full-sized ride into a compact, locked package in under 20 seconds. Whether navigating bustling streets, hopping on a train, or tucking it under a café table, the C Line is designed to move with you effortlessly. Now featuring a new 12-speed system, it delivers an impressive gear range—matching, if not exceeding, traditional road and commuter bikes—all while maintaining Brompton’s renowned compact design. The Advance Rear Frame takes portability even further, allowing riders to glide and steer their folded bike with ease, thanks to larger, smoother-rolling wheels.
Personalisation has always been at the heart of Brompton, and the C Line 12-speed continues this tradition with three striking new colours: the bold Flamingo Pink, the sophisticated Amethyst Lacquer, and the classic Turkish Green. Its unique Brompton Luggage System ensures a stable ride, even when carrying heavy loads, by keeping weight on the frame rather than the handlebars. Whether you're commuting, adventuring, or simply enjoying the ride, the C Line 12-speed is a versatile, stylish, and practical bike that redefines urban mobility.
The original folding bike
C Line is the original steel folding bike built for the city. Proudly handmade in London since 1975. It transforms from a go-anywhere vehicle to a small, locked package in under 20 seconds. Easy to lift, carry or store. You can take it on trains, tuck it in car boots or under restaurant tables. Add luggage, run a rack, and even store a toolkit inside the frame.
New 12-speed system
The latest development is the C Line 12-speed, brought in to accompany the 2 and 6-speed options. First seen on the P Line model, Brompton's unique 12-speed system is an expertly engineered solution that gives riders more gears and more range. It takes portability of Brompton’s classic bike to a whole new level, thanks to an Advance Rear Frame which allows owners to glide and steer their folded bikes through railway stations and entrance foyers with the seat post locked halfway up.
New Colors
The Brompton C Line 12-speed is available in three new exclusive colors. Flamingo Pink—a vibrant, warm pink that’s an eccentric crowd-stopper, just like its namesake. Turkish Green—a Brompton classic, back by popular demand. Amethyst Lacquer—a striking purple with a transparent finish that showcases the craftsmanship behind every frame.
Brompton bikes expertly undergo a meticulous powder-coating process using environmentally friendly powders, all powered by 100% renewable energy. With seven striking colors to choose from and new shades released throughout the year, your ride is as unique as you are.
Carry everything you need
From your laptop to labradoodle. The unique Brompton Luggage System places the weight on your frame instead of the handlebars. So, when carrying loads, your ride remains brilliantly stable.
Weight: From 26.4 lb
Speed: 12-speed
Material: Steel
Folded Size: 25.3" H x 23'' W x 10.6'' D
Main Frame: Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints
Rear Frame: Brompton Advance Rear Frame
Fork: Steel brazed fork
Grips: Lock-on grips with soft-compound rubber adhered to an engineered core
Seatpost: Standard, Black (33")
Saddle: Standard
Seatclamp: Composite seat clamp and rear frame clip
Hinge Clamps: Composite hinge clamp levers
Pedals: Brompton folding left pedal
Drivetrain: Brompton 12-speed drivetrain, 402% range
Chainset: 6061 forged aluminum crank with 50T chainring and integrated chainguard
Bottom Bracket: Square taper bottom bracket
Headset: Brompton headset
Shifters: Brompton 4 speed derailleur shifter & 3 speed hub gear shifter
Sprockets: 11-18 Tooth
Derailleur: Patent-pending direct mount 4-speed derailleur
Rear Wheel: Double wall rim, 28 spoke, Brompton Wide ratio 3 speed internal gear hub
Front Wheel: Double-wall rim, 28 spokes laced to a Brompton front hub
Tires: 349 x 35C Schwalbe Marathon Racer. A puncture resistant tire with a reflective sidewall
Tubes: Schrader valve
Fenders: Included
Lighting: Reflectors
Roller Wheels: Advance Roller Wheels
Rack: Not included
Brakes: Brompton Dual Pivot Calipers
Front Carrier: Front carrier block adaptor for all types of Brompton luggage
On Bike Accessories: Lezyne Pump, Mounts & Brompton Bell
Disclaimer: * Specifications are subject to change without notice
