Brompton C Line 12 Speed 2025 - Folding Bike
The Brompton C Line 12-Speed is designed for riders who need a reliable, high-performance folding bike that integrates seamlessly into daily life. Proudly handmade in London since 1975, Brompton bikes are crafted with precision engineering to deliver exceptional durability, ride quality, and convenience.
Key Features:
- Frame: Heat-treated steel mainframe with a Superlight Titanium Advance rear frame.
- Fork: Superlight Titanium fork with a threaded headset for precise handling.
- Drivetrain: Combined 3-speed hub gear & 4-speed derailleur, 12-speed range.
- Brakes: Brompton Dual Pivot Caliper brakes for reliable stopping power.
- Wheels: Brompton Lightweight Rims with smooth-rolling 54mm roller wheels.
- Handlebars: Ergonomic design for comfort and control.
- Standout Feature: Folds in under 20 seconds for easy transport and storage.
- Finance: Available with 0% APR finance.
At the heart of the bike is a heat-treated steel mainframe, known for its strength and longevity, while the Superlight Titanium Advance rear frame reduces weight and enhances portability. The newly designed 54mm roller wheels make it effortless to glide and steer the bike when folded, whether you’re navigating train platforms, offices, or cafés.
The new 12-speed gearing system expands the Brompton’s capabilities, matching or exceeding traditional road and commuter bikes in versatility. This innovative setup pairs a 3-speed hub gear with a 4-speed derailleur, offering a wide range of gears for tackling city streets, rolling countryside, and steep hills alike. Ergonomic trigger shifters ensure smooth, precise gear changes for an intuitive riding experience.
For confident stopping power in busy urban environments, the Brompton Dual Pivot Caliper brakes provide precise and reliable braking performance. The Brompton Lightweight Rims and Superlight alloy front hub contribute to a fast, efficient ride, while the compact 16-inch wheels enhance agility and responsiveness.
The Superlight saddle features a carbon-reinforced base and integrated rear light mount, offering extra carrying support and improved visibility. The Brompton Luggage System ensures weight is distributed on the frame rather than the handlebars, maintaining stability even when carrying heavy loads.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Mainframe: Precision drawn heat treated steel tubing with hand brazing and selected auto brazed jointsRearframe: Superlight Advance rear frame made from Titanium with a replaceable hanger, redesigned suspension block and new 54mm roller wheels |
| Fork | Superlight Titanium fork with a threaded headset |
| Headset | Superlight headset |
| Front Brake | Brompton Dual Pivot Caliper |
| Rear Brake | Brompton Dual Pivot Caliper |
| Brake Lever | Brompton alloy brake lever |
| Rear Mech | Combined 3 speed hub gear & direct mount 4 speed derailleur |
| Shifters | Brompton 3 and 4 speed Ergonomic Trigger shifters |
| Speed | 12 |
| Rims | Brompton Lightweight Rim |
| Front Hub | Superlight alloy front hub with hex key axle |
| Rear Hub | Aluminium hub body with sealed bearings, newly developed 4 speed freehub body and hex key axle |
| Seat Post | Brompton Standard Chromoly steel tube - gloss black. |
| Saddle | Brompton Superlight saddle. Carbon reinforced base with rubber grip for carrying support. Intergrated mounts for compatible rear light. |
| Bottom Bracket | Square taper bottom bracket |
| Chain | Hollow pin Superlight Advance Chain |
| Pedals | Quick Release Left Hand and fixed right hand pedals. Lighter and Stiffer for a better ride feel. |
Brompton Folding Bike Size Guide
All Brompton bikes have the same size frame and with the standard seatpost fitted are suitable for riders with an inside leg measurement up to 84cm or 33".
Longer seatposts are available for those with inside leg measurements over 84cm.
|
Seatpost |
Inside Leg (Centimetres) |
Inside Leg (inches) |
|
Standard |
Up to 84 |
Up to 33” |
|
Extended |
84 - 89 |
33” – 35” |
|
Telescopic |
Over 89 |
Over 35” |
Customer reviews and Q&A's are disabled because you declined functional cookies.
To enable reviews and Q&A's click the 'Cookie Settings' button below and enable functional cookies.
Brompton C Line 12 Speed 2025 - Folding Bike
Cycle to Work is a salary sacrifice scheme, where you can save up to 42% off a new Bike and Safety equipment. This means the cost is deducted from your salary as a non-cash benefit, so you save on tax and national insurance.
Here at Tredz, we accept Cycle to Work vouchers from all national schemes. For more information click here.
We understand that the Cycle to Work process can be a little slower than we would all like - so to help you pick the perfect ride, we're now offering FREE Cycle to Work Reservations (T&C's apply). Simply speak to a member of our Online Bike Experts Team via Live Chat to discuss your reservation. Find out more here.
At Tredz we make finance easy. You can choose from a range of flexible finance repayments from 6 months up to 48 months, choose to place a deposit and pay the balance on finance. Go with a 0% APR finance deal with absolutely no interest on payments, or a 9.9% APR Buy Now Pay later option with a choice of 12 or 24 deferred payment options, or a longer-term 14.9% APR option with lower monthly payments. For more information click here.
At Tredz, we’re committed to bringing you the best products at the best prices. If you find a product cheaper elsewhere, simply contact us for an immediate response using our live chat service. Click here to discuss your price match with an agent now for help.
Subject to Terms and Conditions
At Tredz, we offer a fast high quality service, with a range of options from free delivery on orders over £30, next day and convenient click & collect from one of our stores. Simply select within the checkout.
*Courier deliveries to Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and the Scottish Highlands/Islands will incur a charge.At Tredz, if you are not 100% happy with your order, then you can use our simple hassle free returns service. Simply return the item new and unused in the manufacturers original packaging within 365 days of purchase. Bikes and larger items are collected by courier.
When you receive your bike, all you'll need to do is unpack it, attach the pedals, turn the handlebars and ride.
To help you get started we have put together a handy Bike Building Guide, click here.