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Brompton C Line Explore

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The Brompton C Line Explore 12-speed is the ultimate city companion, combining iconic British craftsmanship with genuinely useful portability. Handmade in London since 1975, it transforms from a full-sized ride into a compact, locked package in under 20 seconds. It is built for busy streets, train platforms, office storage, and café stops, moving with you effortlessly.

The new 12-speed system delivers a wide, practical gear range that competes with traditional commuter and road setups while still fitting inside the compact Brompton solution. The Advance Rear Frame takes portability further again, helping you glide and steer the folded bike with ease thanks to larger, smoother-rolling wheels.


Highlights

Brompton C Line Explore 12-speed
12-speed range in a compact package
Wide, usable gearing for flatter commutes, rolling terrain, and longer rides, all engineered to keep the Brompton fold compact and tidy.
Folds in under 20 seconds
Transforms quickly into a compact, locked package that is easy to carry, store, and take on public transport.
Advance Rear Frame
Makes the folded bike easier to move and steer, with larger, smoother-rolling wheels that glide through stations, footpaths, and buildings.
Brompton Luggage System
Stable front luggage that keeps weight on the frame rather than the handlebars, maintaining confident steering even with heavier loads.
Handmade in London
Built with Brompton’s renowned attention to detail, quality control, and long-term serviceability.

Personalise your C Line

Personalisation has always been at the heart of Brompton. The C Line Explore 12-speed continues that tradition with standout colour options such as Cloud Metallic, Palm Green and Plum Red. Whether you are commuting, adventuring, or simply enjoying the ride, the C Line Explore is a versatile, stylish, and practical bike that redefines urban mobility.


Watch the Brompton 12-speed in action

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

Brompton Folding left hand and non-folding right-hand pedals

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

Brompton Bell

Disclaimer

* Specifications are subject to change without notice