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The Brompton C Line 12-speed is the ultimate city companion, blending iconic British craftsmanship with cutting-edge portability.
The Brompton C Line 12-speed is the ultimate city companion, blending iconic British craftsmanship with cutting-edge portability.
Brompton

Brompton - C-Line Advanced 12 Speed - High Bar Folding Bike

£1,599.00
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Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
Earn Rewards
When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.
Ordered an item online? Use our online return portal (opens in a new tab).
General Conditions

Any item, except food, charitable prizes, face masks / cycling underwear (when removed from packaging) or e-gift vouchers can be returned to us for any reason within 28 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase. Partial returns are possible. Goods must be returned intact, unused, undamaged, clean or not having been fitted to a bike. Items need to be in resalable condition in original packaging including all warranty cards, manuals and accessories. We reserve the right to decline a refund or an exchange if the condition of the item(s) don’t comply with the terms above and/or the claim is outside the stated time scales.

It is recommended that you use a recorded delivery service to ensure your items are received by us. We cannot assume responsibility for items that are lost in the post. Online or in-store purchases can both be returned to any store free of charge or can be returned by post after completing our online returns form. If you wish to return your bike to us, please keep the box it arrived. If an order(s) is broken or spoiled when it is delivered, please notify us within 48 hours of delivery otherwise the returns policy no longer applies. Within this period, we will also require images of the damage to the packaging and its contents. This will need to be emailed to the relevant store or support@cyclerevolution.net.

We reserve the right to pass on charges onto the customer for any return of unwanted goods that incurs a cost to the process. These include any costs levied by a finance company, courier or CycleScheme provider. We also have the right to charge for any labour or courier costs it may take to process a return should any complications arise due to negligence or accidental damage. We will try our best to process any return, exchange, refund or warranty claim as efficiently and fairly as possible, complying with the terms above and manufacturers guidelines. We respectfully ask that customers realise that we are only human, and rude or threatening behaviour to any staff member cannot be tolerated.

Order Deposits & Special Orders

Refunds of deposits / orders cannot be given if the item or bicycle has had to be ordered specially from our supplier (special orders). If the item was from stock and has been held on deposit layaway for more than 28 days, then the deposit cannot be refunded, only exchanged or added to an account credit.

Online Orders

If you wish to cancel or return an order at any time up to 14 days from the date of order, please contact us as soon as possible via email, phone or visit the branch you purchased from for a copy of our returns form. Partial returns are possible. Goods must be returned intact, unused, undamaged, clean and not having been fitted to a bike. Items need to be in a resalable condition with it’s original packaging including all warranty cards, manuals and accessories. This includes any damaged incurred whilst building, packaging or shipping a bike. Please do not directly stick labels or write on the item or the item's original packaging.

Send your goods (unless otherwise stated) securely packaged (t is recommended that you use a recorded delivery service to ensure your items are received by us), including a copy of your receipt and the returns form sent by us, to the store where you purchased the item from. It’s the responsibility of the purchaser to arrange and cover the costs of any returns (except faulty or incorrect items). If you want assistance in returning a bulky item such as a bicycle, forks or turbo trainer, please email us on support@cyclerevolution.net to arrange a special courier collection. Depending on the reasons for returning an item a charge may be incurred for this service.

Warranty Claims

In any circumstance of a suspected faulty item purchased from ourselves either in-store or online, please contact us as soon as possible in person or via email with details and/or pictures where possible to obtain a warranty returns number. On receipt of your goods, we will carry out a warranty inspection and will contact you within 3 working days of receipt. Terms and conditions of warranties vary depending on the product, so please consult your owner's guide of the manufacturer directly for clarification. Any warranty claims not directly initiated by Cycle Revolution but by a third-party retailer must be approved by us before any work is performed. We only cover labor costs associated with the agreed-upon issues; any additional work not covered by the warranty falls under the product’s owner’s responsibility. Any work or parts purchased prior to reaching an agreement with us are the customer’s responsibility.

If your purchase is within the manufacturer's warranty period we will repair or replace the item(s) as stated in the manufacturer's warranty guidelines. In some cases, the manufacturer/ supplier may require to see the item(s) before repair or replacement can take place. In this unavoidable situation, we will inform you and it is likely to increase the turnaround time of your claim. You are entitled to an immediate refund if the goods are deemed to be faulty, of unsatisfactory quality or unfit for purpose within 30 days of purchase. We reserve the right to exchange or repair any faulty goods between 30 days and before 6 months from the original purchase. Should this one and only repair be unsatisfactory then a customer is entitled to a complete refund. After 6 months from purchase, it is the responsibility of the purchaser to prove a fault. Labour or transportation costs are not covered by any warranty. As part of our customer service commitment, we are happy to cover the labour of any warranty claim for 6 month, upon bicycles we supplied or repaired.

Fair wear and tear or misuse are not considered a fault and Thomas Cycle Revolution would not be liable in these cases.
Our returns policy does not affect your statutory rights, full details of which can be obtained from any Trading Standards Department or Citizen’s Advice Bureau.

Brompton - C-Line Advanced 12 Speed - High Bar Folding Bike

Season:2025

Brand:Brompton

Code:ClineAdv12spdHigh50T

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, these 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. 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.

Features:

  • Handmade in London since 1975
  • Transforms into a compact, locked package in under 20 seconds
  • New 12-speed system delivers an impressive gear range
  • Advance Rear Frame allows gliding and steering when folded with larger, smoother-rolling wheels
  • Unique Brompton Luggage System keeps weight on the frame
12-speed 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 colours Amethyst Lacquer, Flamingo Pink and Turkish Green - available exclusively 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.
Technical Information
  • Weight
    From 12 kg
  • 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
    Superlight cnc aluminium pedal set with left hand QR 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 12-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
  • Mudguards
    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 and Mounts & Brompton Bell
Sizing Information
Professional Opinion
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