What is a Brompton T Line?

Invention, innovation and imagination have been the driving principles at Brompton since the beginning.  

Over five decades of ambitious design have led us to the T Line. Engineered with a lightness unlike anything you’ve experienced – the T Line has a re-engineered all-titanium frame and super responsive carbon components. At just 7.45kg, the lightest Brompton ever made delivers unmatched performance and practicality.  

Add to this the smoother, faster folding mechanisms and experience freedom in the city like never before. The best of the Brompton experience, amplified with the power of titanium.  

Which Brompton T Line model is right for me?

T Line One – 1 Speed

This is the T Line in its purest form. A single-speed machine, perfect for riders who value simplicity and efficiency. With no need to shift gears, the T Line One offers a breezy, low-maintenance riding experience.  

The single-speed setup provides a smooth and consistent ride in flat cities. Ideal for minimalist, flat-terrain commuting. 

T Line 4-Speed

The T Line 4-Speed has 4 gears – using a tiny derailleur that weighs only 60g – and mudguards. This makes it heavier than T Line One, but not by much.  

The T Line Urban 4-Speed offers unmatched portability and durability. The 4-speed drivetrain is optimized for city performance, which ensures smooth gear transitions whether you’re cruising, accelerating or climbing hills.  

The perfect city bike: the T Line 4-Speed is easy to carry onto public transport thanks to its compact and lightweight design. Ideal for daily commutes or weekend rides – this model combines efficiency, strength and style for the ultimate urban mobility solution.  

T Line 12-Speed

The T Line 12-Speed has a unique gear system that provides more range and more possibilities. This means it's easier to ride up and down hills. Experience the lowest gear ever and the highest gear ever (with lots of small steps in-between). Ensure a comfortable ride for touring, exploring, commuting and beyond.  

Enjoy the range of a road bike, hybrid bike, commuter bike or city bike, all with the convenience of the compact Brompton package. 

What is the difference between Brompton P Line and Brompton T Line?

The Brompton P Line is designed for lightweight performance. Weighing as little as 9.7kg, the P Line is handcrafted from steel and titanium. The T Line is the lightest Brompton ever made - starting at 7.4kg, built in titanium with custom carbon components.  

Designed to pack a punch in the city, the Brompton P Line has a titanium rear frame and fork – refined geometry and an exceptional ride feel. It’s easy to carry and manoeuvre on the go. With Advance Roller Wheels, Continental Contact Urban Tyres and a superlight gear system, the P Line excels on the road. Expect greater efficiency, sharper handling and fast acceleration.  

Built in pursuit of lightweight performance, the Brompton T Line is lighter, faster and even more fun. The product of three years of research and development, T Line required new construction techniques, the design of over 150 components in titanium and a new factory dedicated to making the titanium parts.  

Expect super responsive carbon components and faster folding mechanisms, alongside Schwalbe One Tyres, superlight carbon crankset and a tig-welded titanium frame. T Line delivers unmatched performance and practicality – for a dynamic and agile ride every time.  

Brompton T Line parts and accessories 

Looking to enhance your ride? We have a wide range of parts and accessories, designed and made with the same ethos as the bike. There’s the front carrier block, which securely attaches to the front of your Brompton T Line to provide a sturdy attachment point for carrying items – or the superlight carbon low handlebar made of carbon fibre.  

Our Be Seen Lights enhance your visibility on the road with a 26-lumen front white LED light and an 11-lumen rear red LED light. For an efficient solution to transporting your bike when folded away, the Complete Rear Rack Set has been designed to clip onto the back of your bike with ease. Fold your Brompton down in less than 20 seconds, roll it along and make it in time for your next train.