2025 Brompton T Line Urban - Mid

Brompton T Line Urban

Feel inspired by titanium's lightweight, bright, and mesmerising 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.

FEATURES

• Ulltralight Titanium
  In the pursuit of lightweight performance, we’ve taken the best of the Brompton experience and amplified it with the power of titanium in pursuit of the lightest folding bike.
• Ultimate lightness
  Starting at 7.95 kg, the T Line - 4-Speed delivers unmatched performance and practicality. Fine-tuned for city performance. Fenders and luggage system.
• Superlight components
  Carbon fibre handlebars, fork and seatpost.
• Ultimate ride
  The re-engineered titanium frame makes this ultralight folding bike even more dynamic and agile - it’s a joy on the road.
• Carbon throughout
  Vibrations-dampening fork, handlebar and crankset for the smoothest ride ever.
• Beauty in the detail
  Faster to fold, easier to carry. We studied every interaction with the folded bike and improved it. There’s nothing like this Brompton, not even other Bromptons.
• 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.

SPECIFICATIONS

• Weight: From 7.95 kg
• Speed: 4-speed
• 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 standard seatpost (33")
• Saddle: Superlight
• Seat Clamp: 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 fixed right-hand and quick-release left-hand pedals
• Drivetrain: Brompton 4-speed drivetrain, 163% range
• Number of gears: 4-speed
• Chainset: Superlight carbon crankset with hollow BB30 axle, integrated spider, 56T 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
• Sprockets: 11-13-15-18 tooth
• Derailleur: Patent pending direct mount 4-speed derailleur
• Rear Wheel: Superlight Advance 1-speed wheel - Lightweight rim, double-butted spokes and aluminium hub body
• Front Wheel: Lightweight rim, double butted spokes and aluminium hub with sealed bearings and allen key axle
• Tyres: Schwalbe ONE with Addix Race rubber mix and V-Guard puncture protection
• Tubes: Tubolito S-tubo 34g tube with presta valves
• Lighting: Reflectors
• Pump: Not included
• Front Carrier Block: Option
• Mudguards: Included
• Rack: Not included
• Brakes: Dual Pivot Calipers