12 Speed
Do even more. All the range of – and sometimes even more than a road, hybrid, commuter or city bike, all with the convenience of the compact Brompton package.
New Advance Rear Frame
The most portable C Line ever - you can now steer and glide with you seat post locked halfway. New bigger, better Roller Wheels go from street to building with ease.
Exclusive new colors
Amethyst Lacquer, Flamingo Pink and Turkish Green are new color options exclusive to C Line 12 Speed
The most compact folding bike
From a go-anywhere bike into a small, locked package in under 20-seconds. Everything folds, even the pedal.
Super portable
Lift, carry and store. Or fold halfway to tow, roll or glide. Like a small suitcase, your Brompton moves through the day easily - everything connects.
Ride low, mid or high
With handlebar options that mimic the feeling of road bikes, hybrids and cruisers.
12 Speed
Do even more. All the range of – and sometimes even more than a road, hybrid, commuter or city bike, all with the convenience of the compact Brompton package.
New Advance Rear Frame
The most portable C Line ever - you can now steer and glide with you seat post locked halfway. New bigger, better Roller Wheels go from street to building with ease.
Exclusive new colors
Amethyst Lacquer, Flamingo Pink and Turkish Green are new color options exclusive to C Line 12 Speed
The most compact folding bike
From a go-anywhere bike into a small, locked package in under 20-seconds. Everything folds, even the pedal.
Spread the cost with financing
Get a Brompton C Line from as little $96 per month. We've partnered with Klarna so you can spread the cost of your purchase into equal monthly payments with 0% interest for 24 months.
Advance Roller Wheels
Bigger yet lighter wheels for walking with your folded Brompton. The new tri-spoke design gives 15% greater ground clearance. Premium industrial-grade materials make them brilliantly durable.
Front Carrier Block
Brompton bags are expertly engineered to sit securely on the front of your bike with one quick click. The unique mounting system places the weight on your frame instead of the handlebars.
Brompton Saddle
Our Standard Saddle with black rails at 147mm in width is comfortable, sturdy, and reliable. The saddle is one of the most important parts of your bike, and it plays a huge part in your comfort and enjoyment.
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.
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.
12-speed
From 26.4 lb
Steel
Specification
Weight
From 26.4 lbSpeed
12-speedMaterial
SteelFolded Size
25.3" H x 23'' W x 10.6'' DMain Frame
Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed jointsRear Frame
Brompton Advance Rear FrameFork
Steel brazed forkGrips
Lock-on grips with soft-compound rubber adhered to an engineered coreSeatpost
Standard, Black (33")Saddle
StandardSeatclamp
Composite seat clamp and rear frame clipHinge Clamps
Composite hinge clamp leversPedals
Brompton folding left pedalDrivetrain
Brompton 12-speed drivetrain, 402% rangeChainset
6061 forged aluminum crank with 50T chainring and integrated chainguardBottom Bracket
Square taper bottom bracketHeadset
Brompton headsetShifters
Brompton 4 speed derailleur shifter & 3 speed hub gear shifterSprockets
11-18 ToothDerailleur
Patent-pending direct mount 4-speed derailleurRear Wheel
Double wall rim, 28 spoke, Brompton Wide ratio 3 speed internal gear hubFront Wheel
Double-wall rim, 28 spokes laced to a Brompton front hubTires
349 x 35C Schwalbe Marathon Racer. A puncture resistant tire with a reflective sidewallTubes
Schrader valveFenders
IncludedLighting
ReflectorsRoller Wheels
Advance Roller WheelsRack
Not includedBrakes
Brompton Dual Pivot CalipersFront Carrier
Front carrier block adaptor for all types of Brompton luggageOn Bike Accessories
Lezyne Pump, Mounts & Brompton BellDisclaimer
* Specifications are subject to change without noticeReviews & Questions
C Line - 12-speed
Shipping & Returns
BUY ONLINE, PICKUP IN STORE
A wide range of our bikes can be bought online at brompton.com and shipped to one of our dealers of your choosing. Your bike will be expertly prepared at your local shop and be ready to ride straight away. As always, our nationwide network of accredited retailers are available for servicing and ongoing support for your Brompton.
SHIPPING
Get free ground shipping on all orders over $125, sent by our trusted courier partner in 3-5 working days. Easy set up. Follow the Quick Start Guide to add your saddle and do some basic checks, and you’ll be ready to cycle away in less than 10 minutes from opening the box.
RETURNS
Brompton is committed to quality; if our products have failed you in any way, please return them and we will either exchange them or give you your money back. If the product is faulty or has arrived damaged, we will reimburse the cost of return postage. Unwanted items may be returned* within 28 days at your cost.
*Brompton Renewed sales are final and non-returnable.
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