Brompton (United Kingdom) - Press Release: We reinvented every millimetre of the Brompton to create our lightest bike ever.
Made between Sheffield and London by a select team of our best designers, engineers and fabrication specialists, T Line is all-new and ultra-light, for the ultimate freedom in the city and beyond.
The product of three years of limitless thinking, research and development, T Line is greater than the sum of its parts.
To bring Brompton's classic lines to life in titanium, we forged entirely new construction techniques. Designed and made every component from scratch. And we built a new factory to do it all in.
This is innovation in action.
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 Richie, our founder, obsessed over that 40 years ago. It's never been bettered, just refined. The original and still the best.
Ultra-light. As strong as steel.:
The entirely re-engineered T Line titanium frame weighs 37% less than our original all-steel equivalent and is just as strong. At 7.45 kg in total, the T Line is comparable to a carbon road bike. Yet, it can be comfortably ridden by a 110kg rugby player. And withstand the punishing impact of the city.
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.
Pioneering Carbon Seat Post:
The first bike in the world with a steel-armoured carbon seat post. We know because we invented it. Ordinary carbon seat posts are stiff, strong and lightweight, but they can't stand up to the daily use of a Brompton. So, we developed a new process to reinforce the limitations of carbon with 0.3mm steel armour. The result: a superlight seat post that can take the abrasion of the fold, 110kg load and all-weather riding.
Every detail sweated:
Faster to fold, easier to carry. We studied every interaction with the folded bike and improved it. New: self-aligning hinges, always set-to-go. A spring-loaded handlebar catch that effortlessly clicks. Larger diameter rolling wheels go with the flow—an easy-grab carbon saddle with an integrated nose handle.
Nothing folds like this Brompton, not even other Bromptons.
A seriously fun ride:
Brompton ride dynamics have always made owners smile, and now they're elevated in every way.
Carbon cranks and cast Ti bottom bracket shift your power for a faster ride. Naturally, shock-absorbing titanium smooths out the road. The one-piece carbon fork and wider carbon handlebars make it stiffer and even more responsive. This is a serious machine that's seriously fun to ride.
Ready to fly through the city?
Available in four specifications:
- T Line One Low Bar: Single speed with flat bar
- T Line One Mid Bar: Single speed with riser bar
- T Line Urban Low Bar: 4 speed with flat bar
- T Line Urban Mid Bar: 4 speed with riser bar