Brompton C Line 12 Speed with Roller Frame 2025 - Folding Bike
The Brompton C Line 12-Speed is a game-changer for urban cyclists, offering an unmatched combination of portability, performance, and practicality. Proudly handmade in London since 1975, Brompton bikes are known for their precision engineering and iconic foldable design, making them the ultimate solution for city commuting, travel, and everyday riding.
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 responsive 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.
The bike’s main frame is constructed from precision-drawn, heat-treated steel tubing, providing durability and a smooth ride. Paired with the Superlight Advance Titanium rear frame, this setup reduces weight while improving agility. The new 54mm roller wheels on the Advance rear frame allow for effortless manoeuvrability when folded, making it easier to roll the bike through stations, offices, and tight spaces.
Equipped with a new 12-speed drivetrain, the C Line now matches the gear range of many traditional commuter and road bikes. This innovative setup features a combined 3-speed hub gear and a 4-speed derailleur, giving riders a wider range for tackling hills, flats, and everything in between. The ergonomic trigger shifters offer smooth and precise gear changes for a responsive riding experience
The Brompton Dual Pivot Caliper brakes ensure reliable stopping power, even in busy city traffic. The Brompton Lightweight Rims and Superlight alloy front hub contribute to an efficient, fast-rolling ride, while the compact 16-inch wheels maintain the bike’s agility and easy handling.
Designed for convenience and comfort, the C Line features a Superlight saddle with an integrated rear light mount, ensuring visibility and added carrying support. The Brompton Luggage System allows for seamless integration with Brompton bags, ensuring weight is carried on the frame rather than the handlebars, improving stability.
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” |
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Brompton C Line 12 Speed with Roller Frame 2025 - Folding Bike
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