Brompton T Line 12 Speed (with Front Carrier Block) 2025 - Folding Bike

The T Line Explore 12 offers Brompton’s signature folding mechanism, making it easy to switch from riding to carrying in just 20 seconds. Its lightweight titanium frame combined with a carbon fork makes for a smooth, agile ride, while the 12-speed drivetrain provides plenty of range for varied terrain. This folding bike is designed for riders who need a capable bike for commuting, exploring, or weekend adventures, all while being easy to fold, store, and transport.
Key Features:
- Ultra-light titanium frame with quick-folding mechanism for easy transport
- One-piece carbon fork for strength and precise handling
- Brompton 12-speed drivetrain for a wide gear range, featuring 4-speed derailleur and 3-speed hub
- Dual Pivot Calliper brakes for reliable stopping power
- 16" wheels with Schwalbe ONE tyres for performance and puncture protection
- Flat handlebars for an efficient, comfortable riding position
- Superlight carbon seatpost and pedals for a lightweight build
- Available with 0% APR finance
The Brompton T Line Explore 12 sets a new standard in folding bikes. The titanium frame is not only incredibly lightweight but also durable, providing a smooth and stable ride. The combination of a 4-speed derailleur and a 3-speed hub gives you 12 gears to tackle anything from flat city streets to challenging inclines, all while maintaining Brompton’s signature compactness.
The Schwalbe ONE tyres are designed with puncture protection, so you can ride confidently on varied surfaces, while the bike’s dual-pivot caliper brakes ensure consistent stopping power when you need it most. With the lightweight carbon fork and components like the carbon seatpost and CNC aluminium pedals, the T Line Explore is engineered for performance without adding unnecessary weight.
The addition of a front carrier block makes it easy to attach Brompton’s range of luggage, ensuring you have all the space you need for your commute or adventure. Compact, capable, and expertly engineered, the Brompton T Line Explore 12 is the ultimate companion for those who want flexibility and freedom on two wheels.
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | 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 |
Headset | Grade 9 titanium diameter tubes with integrated headset and spring loaded steerer catch hinge |
Front Brake | Dual Pivot Calipers |
Rear Brake | Dual Pivot Calipers |
Rear Mech | Patent pending direct mount 4 speed derailleur |
Shifters | Brompton 4 speed derailleur shifter & 3 speed hub gear shifter |
Speed | 12 |
Rims | Lightweight rim |
Front Hub | aluminium hub with sealed bearings and allen key axle |
Rear Hub | aluminium hub body and 4 speed freehub body |
Front Tyre | Schwalbe ONE with Addix Race rubber mix and V-Guard puncture protection |
Rear Tyre | Schwalbe ONE with Addix Race rubber mix and V-Guard puncture protection |
Seat Post | Superlight standard seatpost (33") |
Saddle | Superlight Carbon |
Chainset | Superlight carbon crankset with hollow BB30 axle, integrated spider, 50T chainring and chainguard |
Bottom Bracket | FSA Mega Evo Bottom Bracket |
Cassette | 11-13-15-18 tooth |
Pedals | Superlight cnc aluminium pedal set with Fixed right-hand and quick-release left-hand pedals |
Brompton Folding Bike Size Guide
All Brompton bikes have the same size frame and with the standard seatpost fitted are suitable for riders with an inside leg measurement up to 84cm or 33".
Longer seatposts are available for those with inside leg measurements over 84cm.
Seatpost |
Inside Leg (Centimetres) |
Inside Leg (inches) |
Standard |
Up to 84 |
Up to 33” |
Extended |
84 - 89 |
33” – 35” |
Telescopic |
Over 89 |
Over 35” |
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