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Brompton C Line Urban – 4 Speed

$2,750.00$3,050.00

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SKU: C4L

Early Spring 2026 delivery.

These will go fast. Inventory is allocated in the order deposits are received.

Place your pre-order here.

The C-Line 4-Speed is pure Brompton: light, quick, and ruthlessly efficient. The new MK6 rear frame gives you four crisp gears with smarter spacing — enough to rocket away from lights, float over short hills, and keep a smooth cadence without adding weight or complexity. It’s built for predictable city routes and quick inside-to-inside mobility. A bike that turns the last mile into the best mile.

This is the original Brompton idea, sharpened. Handbuilt in London with a powder-coat finish built for daily abuse, it folds in 20 seconds and disappears under a café table or beside your desk. The C-Line Urban isn’t about having more bike — it’s about having the right bike. Efficient. Minimal. Unapologetically practical.

Price $2,750.00$3,050.00

In Stock!

Colour Amethyst Lacquer, Black, Black Lacquer, Bumblebee Yellow, Cloud Metallic, Dune Sand, Flamingo Pink, Ocean Blue, Palm Green, Plum Red, Racing Green, Turkish Green

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Product Details

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Weight

From 26.9 lb
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Folded Size

LWH: 56.5 x 27 x 58.5cm (3.1 Cubic Ft)
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Gear Range

402%
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Frame Material

Cro-Mo Steel

specs

Download Specsheet
  • Main Frame Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints
  • Rear Frame Hand brazed cold-formed micro-alloy steel tubing MK6
  • Fork Steel brazed fork
  • Made In Handmade in the UK
  • Gearing Brompton 4x3 12-speed
  • Shifter Brompton 4 and 3 speed Trigger shifters
  • Derailleur Brompton Chain pusher
  • Crankset 6061 forged aluminum crank with 50T chainring and integrated chainguard
  • Rear Cog(s) 11-13-15-18 Tooth
  • Pedals Brompton Folding left hand and non-folding right-hand pedals
  • Bottom Bracket Square taper bottom bracket
  • Brakes Brompton Dual Pivot Calipers
  • Brake Levers Brompton w/integrated bell/light mount
  • Stem Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints
  • Grips Lock-on grips with soft-compound rubber adhered to an engineered core
  • Seat Brompton comfort with integrated handle
  • Seatpost Extended 90cm
  • Seat Clamp Machined aluminum seat clamp and rear frame clip in anodised matt black finish
  • Headset Brompton headset
  • Tires 349 x 35C Schwalbe Marathon Racer. A puncture resistant tire with a reflective sidewall
  • Tubes Schrader Inner Tube
  • Front Wheel Double-wall rim, 28 spokes laced to a Brompton front hub
  • Rear Wheel Double wall rim, double-butted spokes and Brompton Wide ratio internal gear hub
  • Roller Frame Optional
  • Front Carrier Block Front Carrier Block Adaptor for all types of Brompton Luggage
  • Fenders Brompton Chromoplastic
  • Hinge clamps Composite hinge clamp levers
  • Pump Optional

* Specifications are subject to change without notice

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