Welcome! You are currently on our United Kingdom site. Select our United States site to find your local currency, language and product selection.

T Line Sign up now to be among the first to get access to the next T Line batch drop | Sign up

Please Select
Please Select


T Line: Urban

The ultimate 4-speed folding bike. Precision-engineered titanium. All-new, ultra-light compact drivetrain with a gearing ratio fine-tuned for city performance.
See product full spec
Home | Bikes | T Line Urban
T Line Urban - Mid Side View
Brompton T Line Bike - Studio lifestyle image
Brompton T line bike - riding lifestyle image
T Line Urban - Mid Fold View
T Line Urban - Mid Rear Wheel and Pedals View
T Line Urban - Mid Front Wheel View
T Line Urban - Mid Decal View
T Line Urban - Mid Front View
1 / 8

T Line: Urban

The ultimate 4-speed folding bike. Precision-engineered titanium. All-new, ultra-light compact drivetrain with a gearing ratio fine-tuned for city performance.
Spread cost with Klarna • Free Delivery • Eligible for Cyclescheme
blasted titanium
For a sportier ride
Our classic ride
£4,415.00 — 0.00 Kg
✔ In stock - Dispatched in 3-5 working days
A welder and their equipment flashing whilst working on a Brompton T Line
T Line
T Line
Brand-new everything. Except 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.

A folded Brompton T Line under purple mood lighting
A view of the Brompton T Line rear triangle from the non-drive side
T Line
T Line
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.

T Line
T Line
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.

Close up of the Brompton T Line rear wheel drivetrain
A rear side view of a Brompton T Line on a slight incline
T Line
T Line
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.
“A 4kg saving makes a huge difference when you’re carrying a bike up and down train station steps. I no longer had to lug the bike, I could carry this Brompton as I would some shopping and that was a godsend”
Cyclist logo
“Brompton has come up with a truly exhilarating ride. From the first pedal stroke, it feels speedy, stable and focussed”
T3 Logo
“The T Line is about as much bike as you could hope for in foldable form. I found myself opting to ride the T Line above my usual city get-around, even when folding wasn’t a necessity”
Rouleur logo
“Of all the bikes I’ve ridden for Cyclist over the years, from £12,000 superbikes to double-decker handlebar gravel bikes, the Brompton T Line was the first that had people stopping me in the street”
Cyclist logo
Engineered by us, made for you
T LineバイクのOne
From £4,180 — 7.45 kg
The lightest Brompton ever made. Over 150 components designed ground-up. Masterfully built to deliver an ultra-light, agile and responsive ride. This is the benchmark for freedom in the city
1 Speed
Show Specification Hide Specification
T LineバイクのUrban
From £4,415 — 7.95 kg
A complete ultra-lightweight performance package built to fly around the city and beyond. Precision-engineered titanium. Ultra-strong and ultra-light. The all-new compact 4-speed gearing system optimised for city riding. Faster, smoother folding mechanisms. 110kg load carrying for you and your luggage.
4 Speed
Show Specification Hide Specification
Delivery & Returns
Parts & Accessories
Useful add-on features engineered to enhance your ride.
A Brompton owner with their new Borough Waterproof Backpack on a Cloud Blue C Line
Looking for something else?
Go electric?
Electric C Line Explore
From £2,995 — 15.53 kg
A steel mainframe?
Brompton P Line Urban Midnight Black Metallic on a white background - unfolded
P Line Urban
From £2,244 — 9.99 kg
More colour options?
Brompton C Line Explore Fire Coral on a white background - unfolded
C Line Explore
From £1,405 — 12.11 kg


Spread the cost

Buy now, Pay later with Klarna​

Accredited retailers nationwide

Click & Collect and servicing available​

7 Years Warranty

Register your Brompton for an extended frame warranty​

Free delivery

Arrives ready to ride in 7 working days with 28 days to return​