Power Meets Portability
The Brompton Electric C Line 12-Speed brings electric assistance to the world’s most compact folding bike, expanding its range and capability without adding bulk. With a precision-engineered steel frame and a 12-speed drivetrain, it’s ready for steep climbs, long commutes, and effortless travel—folding small enough to fit under a desk or in a train rack.
A smooth-spinning 250-watt motor pairs with a lightweight 300Wh battery to deliver up to 45 miles of assist. When the ride ends, the battery detaches in seconds for easy indoor charging, and the entire bike folds in less than 20 seconds. Thoughtful design, proven reliability, and real-world utility make this a city-to-anywhere e-bike like no other.
Engineered Simplicity
- 12-speed gearing for the widest range ever on a Brompton—ideal for hills and distance
- 250W brushless front-hub motor with Smart Pedal Assist up to 25 km/h
- Removable 300Wh lithium-ion battery with integrated USB charging port
- Rugged steel main frame with brazed joints for durability and ride comfort
- Folds to 25.3" H × 23" W × 10.6" D in seconds for easy storage or transport
- Puncture-resistant Schwalbe Marathon Racer tires and dual-pivot brakes
- UL 2849-compliant e-bike system meeting NYC safety standards
Note: For best battery life, charge indoors at room temperature and follow Brompton’s safety guidelines for lithium-ion storage and transport.
Bike Facts
Serving size Carries up to 1 person
| Amount per ride | |
|---|---|
| Joy | 100% |
| Bike Details | |
| Frame Material | Steel |
| Brakes | Brompton Dual Pivot Caliper Rim Brakes |
| Tires | 349 x 35C Schwalbe Marathon Racer. Puncture resistant with a reflective sidewall |
| Number of Gears | 12 |
| Rider Height | Standard: 4'7" – 6'2" Extended: 4'7" – 6'5" Telescopic: 4'7" – 6'8" |
| Weight | Approximately 38.88 lbs |
| Ebike Class | Class 1 |
| Motor Power | 250W DC motor |
| Battery / Range | 300Wh 36V with LED display. Range 20-45 miles |
| Suspension | Brompton specific |
| Max Load (lbs) | 242 |
| Included Accessories | Lezyne Pump Fenders Rack Bell |
| Maintenance Requirements | Medium |
* Best consumed daily for optimal joy. Pairs perfectly with laughter and good company.
Clever Cycles • Brompton Electric C Line Explore - 12 Speed
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Details That Matter
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Is This Your Bike? Read On.
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Pure Brompton
Brompton Frame Size Information
How Do I Know Which Size Brompton I Need?
Every Brompton frame is the same size. What changes are the components that fine-tune the fit—namely the seatpost, handlebar type, and stem.
Seatpost Options
Brompton offers three seatpost lengths to match different riders and storage needs:
- Standard: Best for riders with an inside leg up to about 33″. Keeps the bike compact when folded.
- Extended: About 2.5″ longer. Great if you need a little more legroom; because it reaches the ground when folded, the saddle sits higher in the folded position.
- Telescopic: For taller riders (or sharing with one). Extra height without making the folded bike taller. Not standard because it adds a bit of weight.
16″ Wheel Models (C, P, and T Lines)
The classic Brompton lineup shares the same frame geometry but uses different handlebar heights and stems for a tailored fit:
- Low: Sporty, road-bike-like position; good for shorter riders or those who prefer a flatter bar.
- Mid: The all-rounder—neutral and comfortable for most riders.
- High: Upright and relaxed; great for taller riders or a Dutch-bike feel.
For most people, the Mid handlebar is the sweet spot—upright enough for visibility, low enough for control.