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.
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 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 fixed right-hand and quick-release left-hand pedals
Drivetrain
Brompton 4-speed drivetrain, 163% range
Number of gears
4 gears
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
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 free 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
Mudguards
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
Previous model name
T Line - 4-speed