Details
Superlight, compact 4 or 12 gear system built for the city.
At Brompton, we don’t believe that more always means more. That’s why we offer you a choice of gears. For flatter cities, short rides and even infrequent use, less and simpler is often better. But other times, you might want – or need – more. That’s where our all-new 4 and 12-speeds comes in. Just like our bike, Brompton’s 4 and 12-speed gear system is unique. We’ve expertly engineered a solution that gives you more gears and more range while still fitting into our compact solution to life on two wheels.
Brand-new everything. Except for the fold.
The all-new ultra-light titanium frame. Over 150 specially developed weight-saving components. Three years of obsessive material choices and rigorous testing. Everything brand-new except the fold. Andrew Ritchie, our founder, obsessed over that 40 years ago. Never bettered, just refined, it's the original and still the best.
Compact drivetrain, designed ground-up.
Nothing rides like it—the entirely new* drivetrain. Designed ground-up to sit inside the fold, to be light as possible and for optimal city performance. The carbon crankset gives greater power transfer. The 60-gram derailleur delivers smooth shifting in a small package. The new gear-ratio, tested from Amsterdam to San Francisco, perfected for city roads. *patent-pending
Part Numbers
| Option | UPC | MPN | Store SKU |
|---|---|---|---|
| Low / 4 Speed | 5053099141289 | S4L099B0BDT2RQ00T0070120999B00 | BRO22709522W |
| Low / 12 Speed | 5053099141074 | SLL099B0BBT2RQ00T0070120999B00 | BRO23798282W |
| Mid / 4 Speed | 5053099138821 | M4L099B0BDT2RQ00T0070120999B00 | BRO22737541D |
| Mid / 12 Speed | 5053099182084 | MLL099B0BBT2RQ00T0070120999B00 | BRO23756862D |
