Brompton Electric C Line 4 Speed with SuperRoll+ - e-Motiq system 2026 - Electric Folding Bike





The Electric C Line 4 Speed with SuperRoll+ combines Brompton’s iconic fold with smart e-Motiq motor tech. Hand-built in London, it delivers power, portability, and refinement for city commuting and travel.
Key Features:
- Frame: Precision-drawn steel, hand-brazed with Brompton folding geometry
 - Fork: Brazed steel fork for strength and comfort
 - Drivetrain: Brompton 4-speed derailleur, 163% gear range
 - Brakes: Brompton dual-pivot caliper brakes
 - Wheels: 16" double-wall rims with Schwalbe Marathon Racer tyres
 - Other: SuperRoll+ frame for smoother, more stable rolling
 - Finance: Available with 0% APR finance
 
Drive Information:
- Motor: Brompton rear hub motor, 250W with 24Nm torque
 - Battery: 345Wh Greenway battery, up to 90km range
 - User Interface: New Brompton handlebar control screen
 
The Brompton Electric C Line 4 Speed with SuperRoll+ takes the world’s most recognisable folding bike and adds a new level of refinement, technology, and ease of use. Built on five decades of British engineering expertise, it keeps everything riders love about Brompton — compact size, responsive handling, and superb build quality — while introducing smarter power and enhanced rolling performance.
Hand-crafted in London, the precision-drawn, heat-treated steel frame is hand-brazed by Brompton’s master builders for a lifetime of reliable riding. The geometry delivers that classic Brompton balance — stable yet agile, ready for city streets and weekend escapes alike.
At its core is the e-Motiq system, Brompton’s custom electric drive designed for the best possible ride feel. The 250W rear hub motor provides smooth, quiet assistance with 24Nm of torque, while the 345Wh Greenway battery delivers up to 90km of range and a full charge in around five hours. The handlebar control screen puts essential ride data at your fingertips and allows intuitive control of assistance levels.
Smarter still, the e-Motiq system learns your riding style — adapting power delivery and range predictions as you ride. Over your first 100km, the system fine-tunes every 6km, personalising performance to make each journey feel perfectly tailored.
New for this model, the SuperRoll+ system transforms the way your Brompton moves when folded. The redesigned roller frame shifts the bike’s centre of gravity for a lighter, more balanced feel when wheeling. Four wheels on the base mean faster, smoother, and more stable rolling through stations, corridors, or shop floors. Simply raise or lower the seatpost to switch between Shopper Mode and Suitcase Mode, then push, pull, steer, and glide with effortless control.
The 4-speed drivetrain offers a wide 163% gear range for versatile city riding, while dual-pivot caliper brakes ensure precise, dependable stopping power. The Schwalbe Marathon Racer tyres roll fast and grip confidently, with puncture protection and reflective sidewalls for peace of mind on busy roads.
Every Electric C Line is finished with a powder-coated surface and built using energy from over 90% renewable sources, reflecting Brompton’s commitment to sustainability as well as craftsmanship.
Compact, clever, and endlessly capable, the Brompton Electric C Line 4 Speed with SuperRoll+ – e-Motiq System is more than a folding e-bike — it’s an everyday companion built to make urban travel effortless, efficient, and fun.
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints. Brompton Steel Rear Frame | 
| Headset | Brompton headset | 
| Front Brake | Brompton Dual Pivot Calipers | 
| Rear Brake | Brompton Dual Pivot Calipers | 
| Rear Mech | Brompton 4-speed drivetrain, 163% range | 
| Shifters | Brompton 4-speed derailleur shifter | 
| Speed | 4 | 
| Rims | Double-wall rim, 20 spokes | 
| Front Hub | Double-wall rim, 20 spokes laced to a Brompton front hub | 
| Rear Hub | Brompton Rear Motor 24Nm of Torque and 250W of Motor Power | 
| Front Tyre | 16" Schwalbe Marathon Racer | 
| Rear Tyre | 16" Schwalbe Marathon Racer | 
| Seat Post | Extended, Black (35") | 
| Saddle | Standard | 
| Chainset | 6061 forged aluminium crank with 54T chainring and integrated chainguard | 
| Bottom Bracket | Square Taper | 
| Cassette | 11-18 Tooth | 
| Pedals | Brompton Folding left hand and non-folding right-hand pedals | 
| Battery Size (WH) | 345Wh Greenway - Up to 90km range with 5-hour full charge | 
| Motor | Brompton Rear Motor 24Nm of Torque and 250W of Motor Power | 
| User Interface | New Brompton Handlebar Control Screen | 
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Brompton Folding Bike Size Guide
All Brompton bikes have the same size frame and with the standard seatpost fitted are suitable for riders with an inside leg measurement up to 84cm or 33".
Longer seatposts are available for those with inside leg measurements over 84cm.
| 
 Seatpost  | 
 Inside Leg (Centimetres)  | 
 Inside Leg (inches)  | 
| 
 Standard  | 
 Up to 84  | 
 Up to 33”  | 
| 
 Extended  | 
 84 - 89  | 
 33” – 35”  | 
| 
 Telescopic  | 
 Over 89  | 
 Over 35”  | 
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Brompton Electric C Line 4 Speed with SuperRoll+ - e-Motiq system 2026 - Electric Folding Bike
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