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Brompton T Line Urban 1-Speed

$7,700.00

The Brompton T Line One – 1 Speed is the ultimate expression of minimalist design. At just 16.4 lbs, its titanium frame delivers agility and strength in a bike that’s effortless to carry and quick to ride. With no gears to think about, it offers a smooth, direct connection between rider and road—perfect for flat terrain and strong-legged city riders.

Carbon components, including the fork, handlebar, and crankset, add vibration-dampening comfort without extra weight. Simple, fast, and ultra-light, the T Line One is built for those who want performance and portability stripped to the essentials. Read our overview of the 2026 T-Line here.

See how a Brompton fits your life
The three features that set Brompton apart
How to Size a Brompton

Price $7,700.00

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SKU: T1L Category: Folding Bikes Tags: Acoustic Bikes, Brompton Bike Web, Preorderable, T Line

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Product Details

Weight

From 16.4 lb

Folded Size

LWH: 56.5 x 27 x 58.5cm (3.1 Cubic Ft)

Gear Range

100%

Frame Material

Titanium

Main Frame Grade 9 titanium tubes, welded main frame with cast titanium bottom bracket manifold
Rear Frame Advance Superlight Titanium rear frame with replaceable hanger, suspension block and 54mm roller wheels

Fork One piece carbon fork and steerer with magnetic pedal holder

Gearing Brompton 1-speed
Shifter Brompton 1-speed
Derailleur Patent-pending direct mount 4 speed derailleur
Crankset Superlight carbon crankset with hollow BB30 axle, integrated spider, 56T chainring and chainguard

Rear Cog(s) 12T
Pedals Brompton Quick Release
Bottom Bracket FSA Mega Evo Bottom Bracket

Brakes Brompton Dual Pivot Calipers

Brake Levers Brompton w/integrated bell/light mount

Stem Grade 9 titanium diameter tubes with integrated headset and spring loaded steerer catch hinge
Grips Superlight lock-on grips with precision ground foam adhered to ultra thin engineered core
Seat Superlight

Seatpost Superlight Standard, Black (33")
Seat Clamp Machined aluminum seat clamp and rear frame clip in anodised matt black finish
Headset Superlight headset

Tires 349 x 32C Schwalbe ONE Black Tire
Tubes Tubilito Presta

Front Wheel Superlight Advance Lightweight rim, double butted spokes and aluminium hub with sealed bearings and allen key axle
Rear Wheel Superlight Advance 1 speed wheel - Lightweight rim, double-butted spokes and aluminium hub body

Roller Frame Optional
Front Carrier Block Front Carrier Block Adaptor for all types of Brompton Luggage
Fenders Brompton Chromoplastic

Hinge clamps Machined aluminium self-aligning hinge clamp levers and plates anodized matt black finish
Pump Optional

* Specifications are subject to change without notice

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Brompton T Line Urban 1-Speed