About the Brompton C Line 12-speed – Low Handlebar
The original Brompton folding bike. With a robust steel frame, proudly handmade in London. The most customisable Brompton model, there’s a C Line for everyone.
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.
T 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.
Extended Warranty
Brompton offers an extended 7-year frame warranty, and a 2-year warranty on all other non-wearing parts. Simply visit the Brompton website to register with your frame number.
Key Features
- Low handlebar for a sporty, performance position.
Specifications
Frameset
- Frame: Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints
- Rear Frame: Advanced Rear Frame. Hand brazed cold-formed micro-alloy steel tubing
- Fork: Steel brazed fork
Wheels
- Front Wheel: Double-wall rim, 28 spokes
- Rear Wheel: Double-wall rim, 28 spokes laced to a Brompton Wide ratio 3 speed internal gear hub with 4 speed external gears. Giving 12 usable gears.
- Rims: Alloy
- Tyres: 349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall.
- Mudguards: Advanced Mudguards.
- Roller Wheels: 66mm roller wheels.
Drivetrain
- Pedals: Brompton Folding left hand and non-folding right-hand pedals
- Crank: (6061) forged aluminium crank with 50T chainring and integrated chainguard
- Derailleur: Brompton 4 speed derailleur
- Chain Tensioner: Designed to deal with the large variations in chain whilst being folded and unfolded.
- Shifters: 4 and 3 speed Trigger shifters
- Bottom Bracket: Square taper bottom bracket
Components
- Handlebar: (6061) aluminium handlebar with shot-peened finish
- Grips: Lock-on grips with soft-compound rubber adhered to an engineered core
- Headset: Brompton headset
- Brakes: Brompton dual caliper rim brake
- Brake Levers: Brompton levers
- Saddle: Brompton saddle with integrated carry handle (147mm). Incorporates a mount for a Brompton rear light and saddle bag.
- Seatpost: Chromoly steel tube, centreless ground, chrome plated for hardness, delivered in a standard length, suitable for maximum inside leg 33 inches / 84 cm
