2026 Brompton T Line Urban 4spd - Raw - Mid

2026 Brompton T Line 4-spd

T Line - 4-speed

Feel inspired by titanium's lightweight, bright, and mesmerizing qualities with the T Line - 4-speed from Brompton. With this sleek bike, you can experience the city in an immersive way. By choosing this lightweight yet powerful model, you can keep focusing on your surroundings as your bike does all the work for you. From noticing the change in a breeze that signifies the entrance to a city to the unique sounds you only hear when riding the T Line - 4-speed lets you embrace urban life completely.
 
To get you around the city, this bike includes 4-speed gears, which improve control and agility. Expertly engineered, this lightweight frame weighs 37% less than steel equivalents, improving the gearing elements and on-road positioning.

Being able to say yes to every opportunity is made possible by the simple folding system, which means you can transition from two wheels to two feet in just 20 seconds. Also light to carry, you can move around with ease in a much better way than compared to traditional bikes.

Precision engineering means you can tackle everything that comes your way. By feeling empowered thanks to the versatile T Line - 4-speed, a more energetic and active way of life awaits you! Brompton can provide a reliable transport method; it's up to you to find your next adventure. Whichever horizon you choose to explore, with the T Line - 4-speed by your side, a positive experience is guaranteed.

Raw Polished Titanium

Titanium is ultra strong and ultra light. It’s the world’s number one naturally occurring metal for strength-to-weight ratio. Being naturally corrosion resistant means high shine and zero rust in all conditions. Shot peened for increased strength. The color, dependent on the light, shines between silvery-white to gunmetal gray.

Manufacturing a Titanium Folding Frame

All Brompton titanium framesets start their life as a set of tubes in our specialist TIG welding factory in Sheffield, 300km north of our London Factory. We built this dedicated space as titanium requires different skills, machinery, and processes compared to steel. The city of Sheffield has a rich history and legacy of expertise in metalworking. TIG Welding requires a high level of skill and coordination between hand, foot and eye. Even the most experienced welders need time and intense focus. Each welder has a signature style making every weld unique. We’re proud of what they do, that’s why each bike is marked by its maker.

*NOTE: pictures show optional Front Carrier Block