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The C Line folding bike captures the same fun-to-ride, go-anywhere feeling it always has. And today, with refined geometry, sleek design updates and modernised components, it does it better than ever. For over 45 years, owners across the world have customised their trusty steel folding bikes in hundreds of ways to suit their needs. Some have ridden around the world. Most have used them to improve their every day. With C Line, your options are always open.
The C Line folding bike captures the same fun-to-ride, go-anywhere feeling it always has. And today, with refined geometry, sleek design updates and modernised components, it does it better than ever. For over 45 years, owners across the world have customised their trusty steel folding bikes in hundreds of ways to suit their needs. Some have ridden around the world. Most have used them to improve their every day. With C Line, your options are always open.
Brompton

Brompton C Line 4-Speed Red Plum High Bar with Super Roll+

£1,479.00
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In the unlikely event that you are dissatisfied with your purchase please feel free to return your goods within 30 days of the purchase date for a full exchange or refund. Any item (excluding food and underwear) can be returned to us for any reason provided it is returned in ‘showroom condition’, with its original packaging, tags and a valid receipt/delivery note.

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South Downs Bikes
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RH20 4EE

If you wish to return your bike to us please keep it in the box it arrived in and contact us and we will arrange a collection.

Please note the following:

  • a) If we have sent you the incorrect bicycle, we will cover the cost of collection and delivery of the correct model.
  • b) If we have delivered the bicycle you ordered, but upon inspection you decide it is not the bike for you, we will charge you £50.00 for the collection.

Please do not ride the bike as a full refund cannot be given if the bike has been used or damaged.

Brompton C Line 4-Speed Red Plum High Bar with Super Roll+

Season:2026

Brand:Brompton

Code:5053099208364

The Brompton C Line 4 Speed delivers a smooth, agile ride with the convenience of a compact fold. Designed and hand-built in London, it’s the perfect blend of craftsmanship, performance, and everyday practicality.

Key Features:

  • Frame: Precision-drawn steel, hand-brazed with Brompton folding system
  • Fork: Brazed steel fork for strength and ride comfort
  • Drivetrain: Brompton 4-speed system with trigger shifters
  • Brakes: Brompton dual pivot caliper brakes
  • Wheels: 16" (349) with Schwalbe Marathon Racer tyres
  • Handlebars: Available in classic, mid or low-rise styles
  • Other: Folds in 20 seconds to a compact, portable size
  • Finance: Available with 0% APR finance

The Brompton C Line 4 Speed is the definition of clever British engineering — a hand-built folding bike that rides as well as it folds. Designed for urban riders who want speed, simplicity, and flexibility, it transforms from a full-sized bike into a compact, easy-to-carry package in just 20 seconds.

Built in Brompton’s London factory, the precision-drawn, heat-treated steel frame is hand-brazed by skilled craftsmen for exceptional strength and durability. Every detail is finished with a durable powder coating, and the folding mechanism is engineered for smooth, reliable use day after day. The result is a bike that’s as robust as it is elegant — ready to handle the demands of daily commuting, travel, or city exploration.

The 4-speed gearing system combines a 2-speed internal rear hub with a 2-speed external derailleur, giving a wide range for hills and flat city streets alike. The Brompton trigger shifters make gear changes light and intuitive, while the dual-pivot caliper brakes deliver reliable stopping power and control in all conditions.

Rolling on 16" Schwalbe Marathon Racer tyres, this bike feels quick, nimble, and stable, with puncture protection and reflective sidewalls for extra peace of mind. The forged aluminium chainset with chainguard keeps your ride smooth and your trousers clean.

Compact when folded, the C Line fits neatly under a desk, on public transport, or in a car boot. It’s light enough to carry and designed to roll easily on small wheels when folded — ideal for mixed commutes or travel adventures.

Handmade with over 90% renewable energy, every Brompton is built to last and built to be ridden. The C Line 4 Speed gives you the freedom to move through the city with ease — agile, reliable, and always ready for wherever your day takes you.

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