The Legendary Brompton Fold
The Brompton C Line 12 Speed is the folding bike you want when you need range and versatility without sacrificing portability. In under 20 seconds, it folds into a compact package you can roll, carry, or stash under your desk — yet when unfolded, it gives you a serious 12-speed drivetrain built into Brompton’s clever Advance Rear Frame.
At a Glance
- 12 gears via hybrid 4-sprocket + 3-speed hub system
- 402 % gear range
- Roller wheels for gliding while folded
- Folds in under 20 seconds
- Weight: Approx. 26 Lbs.
- Hand brazed steel frame built in Brompton’s London factory
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 Continental Tires - Cream Wall |
| Number of Gears | 12 |
| Rider Height | Standard: 4'7" – 6'2" Extended: 4'7" – 6'5" Telescopic: 4'7" – 6'8" |
| Weight | Approximately 29.5 lbs |
| Suspension | Brompton specific |
| Max Load (lbs) | 242 |
| Included Accessories | Lezyne Pump Fenders Bell |
| Maintenance Requirements | Medium |
| Folded Size | 25.3" × 23" × 10.6" |
* Best consumed daily for optimal joy. Pairs perfectly with laughter and good company.
Clever Cycles • Brompton C Line 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.