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About the Brompton C Line 12-speed – Mid 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.
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
BROMPTON C Line 12-speed - Mid Handlebar - Folding Bike 2027
£1,485.70 GBP