Introducing the Brompton T Line Urban - 4 Speed, the pinnacle of folding bike design and urban mobility. Crafted from superlight titanium, this lightweight folding bike redefines commuting with its precision-engineered features. The 4-speed drivetrain is optimized for city performance, ensuring smooth gear transitions whether you're accelerating, cruising, or climbing hills.
As the lightest folding bike in its class, the Brompton T Line Urban offers unmatched portability and durability. Its compact, lightweight design makes it easy to carry onto public transportation or store in small spaces without sacrificing performance.
Experience the freedom and convenience of city cycling with the Brompton T Line Urban - 4 Speed, the best lightweight folding bike available. Perfect for daily commutes or weekend rides, this titanium folding bike combines strength, efficiency, and style for the ultimate urban mobility solution.
Rider fit
Mid
The riser handlebar.
For a natural, relaxed position.
Low
The straight handlebar.
For a sporty, more forward position.
Extended Height Seatpost
For an inside leg up to 35 inches.
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, dependant 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.
Feel inspired by titanium's lightweight, bright, and mesmerizing qualities with the T Line Urban from Brompton. With this sleek lightweight bike, you can experience the city in an immersive way. By choosing this nimble 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 Urban lets you embrace metropolitan life completely.
To get you around the city, this titanium folding 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 bike 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 foldable bikes. Because of the shape of the handlebar, the front reflector needs to be secured to the diagonal part of the bars by the shifter.
Precision engineering means you can tackle everything that comes your way. By feeling empowered thanks to the versatile T Line Urban, 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 Urban lightweight folding bike by your side, a positive experience is guaranteed.
7.94kg/17.5lbs
Weight: From 17.5 lb
Speed: 4 Speed (Urban)
Material: Titanium
Folded Size: 25.4" (H) x 23.6" (W) x 12.6" (D)
Main Frame: Grade 9 titanium tubes, welded main frame with cast titanium bottom bracket manifold
Rear Frame: Advance Superlight rear frame with replaceable hanger, suspension block and 54mm roller wheels
Fork: One piece carbon fork and steerer with magnetic pedal holder
Grips: Superlight lock-on foam grips
Seatpost: Superlight Extended, Black (35")
Saddle: Superlight Carbon
Seatclamp: Machined aluminium seat clamp and rear frame clip in anodized matt black finish
Hinge Clamps: Machined aluminium self-aligning hinge clamp levers and plates anodized matt black finish
Pedals: Superlight cnc aluminium pedal set with left hand QR pedal
Drivetrain: Brompton 4 speed drivetrain, 163% range
Number of gears: 4 gears
Chainset: Superlight carbon crankset with hollow BB30 axle, integrated spider, mid handlebar has a 56T chainring and chainguard and low handlebar has a 50t chainring and chainguard.
Bottom Bracket: FSA Mega Evo Bottom Bracket
Headset: Grade 9 titanium diameter tubes with integrated headset and spring loaded steerer catch hinge
Shifters: 4 speed trigger shifter
Sprockets: 11-13-15-18 tooth
Derailleur: Patent pending direct mount 4 speed derailleur
Rear Wheel: Lightweight rim, double butted spokes, aluminium hub body and 4 speed freehub body
Front Wheel: Lightweight rim, double butted spokes and aluminum hub with sealed bearings and allen key axle
Tires: Schwalbe ONE with Addix race compound and v-guard puncture protection
Tubes: Tubolito S-tubo 34g tube with presta valves
Fenders: Included
Lighting: Reflectors
Pump: Not included
Rack: Not included
Brakes: Dual Pivot Calipers
Front Carrier: Large diameter front carrier block adaptor for all types of Brompton luggage
On Bike Accessories: Not included