Electric C Line Urban - 4 Speed
The Electric C Line. The original folding bike, loved by hundreds of thousands, with the added oomph and ease of electric. It’s a real-life magic carpet ride. There when you need it, tucked away when you don’t.
We’ve been unlocking cities around the world,underground and overground, since 1975 – connecting people and places with our famous folding bikes. And for a bike that’s given so much, would it be fair to ask for more? Well, why not? Because we could all use a little help, whether it’s work or play. Here’s the bike you’ve been waiting for.
Hills? Errands? Weekend adventures? With our Smart Pedal Assist, you can go further, faster and even higher. The compact motor does the hard work for you. And when it’s time to go again, rest easy knowing the lightweight battery quickly detaches from its secure mount, so you can take it with you and charge wherever is convenient. With the most compact folding e-bike, you can do it all.
Weight
From 36.5 lb
Speed
4 Speed (Urban)
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
Hand brazed cold-formed micro-alloy steel tubing
Fork
Reinforced Electric specific steel brazed fork
Grips
Lock-on grips with soft-compound rubber adhered to an engineered core
Seatpost
Extended, Black (35")
Saddle
Standard
Seatclamp
Composite seat clamp and rear frame clip in matt black finish
Hinge Clamps
Composite hinge clamp levers
Pedals
Brompton Folding left hand and non-folding right-hand pedals
Drivetrain
4 inline sprockets, no hub gear, 163% range.
Number of gears
4 Speed - Urban
Chainset
6061 forged aluminium crank with 54T chainring and integrated chainguard
Bottom Bracket
Integrated sealed bearing BB with cadence and torque sensor
Headset
Brompton headset
Shifters
Brompton 2 speed trigger shifter
Sprockets
4 inline sprockets, no hub gear.
Derailleur
Brompton Chain pusher
Rear Wheel
Double wall rim, 28 spoke, Brompton Wide ratio internal gear hub
Front Wheel
Single wall rim, 250W Brushless DC motor providing assistance up to 25 kmp/h
Tires
349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall
Tubes
Schrader valve
Fenders
Included
Lighting
Dynamo
Pump
Brompton pump with flexible hose compatible with Schrader and Presta Valves
Rack
Not included
Brakes
Brompton Dual Pivot Calipers
On Bike Accessories
Lezyne Pump and Mounts
Battery
300Wh 36V with LED display. Range 20-45 miles . 5V 1.5A USB port to charge portable devices. 4-hour full charge using included 2A charger
Range
20-45 miles
Luggage
Essentials bag with 1.5L storage Optional: 20L City bag available separately
Connectivity
Brompton Electric iOS and Android apps available for download
How do you know what size of bike you should buy?
A good place to start is using the sizing charts included for each bike on the info page. If you're in the middle of the recommended height range for a specific size then usually that's the correct one to go with. If you find yourself overlapping sizes at either the top or bottom of the height recommendation than sizing up or down could be a consideration.
For more relaxed fitting "city-style" bikes sizing is less crucial because often they will have adjustable stems and offer more overlap in sizing. Smaller bikes will be slightly easier to manage when starting and stopping while larger bikes will feel more stable when riding. Most often we recommend sizing down in this category.
Bikes that have a more aggressive riding position i.e. road, gravel and mountain bikes sizing is more important. In these categories we usually look closely at 3 numbers, reach, stack, and top-tube length.
