Brompton C Line Folding Bike - 12-Speed
The Brompton C Line 12-speed is the ultimate city companion, blending iconic British craftsmanship with cutting-edge portability. Proudly handmade in London since 1975, our bikes transform from a full-sized ride into a compact, locked package in under 20 seconds. Whether navigating bustling streets, hopping on a train, or tucking it under a café table, the C Line is designed to move with you effortlessly. Now featuring a new 12-speed system, it delivers an impressive gear range - matching, if not exceeding, traditional road and commuter bikes - all while maintaining Brompton’s renowned compact design. The Advance Rear Frame takes portability even further, allowing riders to glide and steer their folded bike with ease, thanks to larger, smoother-rolling wheels.
- Weight: From 12 kg
- Number of gears: 12
- 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
- Seat post: Standard or extended
- Saddle: Standard
- Seat clamp: Composite seat clamp and rear frame clip
- Hinge clamps: Composite hinge clamp levers
- Pedals: Superlight cnc aluminium pedal set with left hand QR pedal
- Drive train: Brompton 12-speed drivetrain, 402% range
- Chainset: 6061 forged aluminium 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: Brompton 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
- Tyres: 349 x 35C Schwalbe Marathon Racer, a puncture resistant tyre with a reflective sidewall
- Tubes: Schrader valve
- Mudguards included
- Lighting: Reflectors only
- Roller wheels: Advance Roller Wheels
- Rack: Not included
- Brakes: Brompton Dual Pivot Calipers
- Front carrier block adaptor for all types of Brompton luggage
- Lezyne Pump and Mounts & Brompton Bell included
- Model year 2025
- There are three handlebar types, offering different riding positions for varying heights of rider and riding styles.
- Low: A straight handlebar. Ideal for those who like to race about town and have experience of riding Brompton bikes. The bar gives the bike a sporty feel.
- Mid: A riser style handlebar. The most popular handlebar type, it creates a relaxed neutral position for most riders. For smaller rider a mid bar provides an upright dutch bike position.
- High: A riser style handlebar with a longer stem. The high bars create a dutch bike position putting the rider very upright. The high bar is ideal for taller riders who want a relaxed feel.
The Brompton C Line 12-speed is the ultimate city companion, blending iconic British craftsmanship with cutting-edge portability. Proudly handmade in London since 1975, our bikes transform from a full-sized ride into a compact, locked package in under 20 seconds. Whether navigating bustling streets, hopping on a train, or tucking it under a café table, the C Line is designed to move with you effortlessly. Now featuring a new 12-speed system, it delivers an impressive gear range - matching, if not exceeding, traditional road and commuter bikes - all while maintaining Brompton’s renowned compact design. The Advance Rear Frame takes portability even further, allowing riders to glide and steer their folded bike with ease, thanks to larger, smoother-rolling wheels.
- Weight: From 12 kg
- Number of gears: 12
- 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
- Seat post: Standard or extended
- Saddle: Standard
- Seat clamp: Composite seat clamp and rear frame clip
- Hinge clamps: Composite hinge clamp levers
- Pedals: Superlight cnc aluminium pedal set with left hand QR pedal
- Drive train: Brompton 12-speed drivetrain, 402% range
- Chainset: 6061 forged aluminium 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: Brompton 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
- Tyres: 349 x 35C Schwalbe Marathon Racer, a puncture resistant tyre with a reflective sidewall
- Tubes: Schrader valve
- Mudguards included
- Lighting: Reflectors only
- Roller wheels: Advance Roller Wheels
- Rack: Not included
- Brakes: Brompton Dual Pivot Calipers
- Front carrier block adaptor for all types of Brompton luggage
- Lezyne Pump and Mounts & Brompton Bell included
- Model year 2025
- There are three handlebar types, offering different riding positions for varying heights of rider and riding styles.
- Low: A straight handlebar. Ideal for those who like to race about town and have experience of riding Brompton bikes. The bar gives the bike a sporty feel.
- Mid: A riser style handlebar. The most popular handlebar type, it creates a relaxed neutral position for most riders. For smaller rider a mid bar provides an upright dutch bike position.
- High: A riser style handlebar with a longer stem. The high bars create a dutch bike position putting the rider very upright. The high bar is ideal for taller riders who want a relaxed feel.
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