T LINE

T Line - Ceratech Black Gold - 4-speed

Colour: Ceratech Black Gold
Handlebars: Mid
£5,499.00
In stock - Dispatched in 2-3 working days - Order by the 18th Dec for guaranteed Christmas delivery
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Features

Material excellence
Material excellence
The deep colour is provided by two thin layers of Cerakote®, a performance coating known for its high-quality look, feel, and durability.
Ultralight
Ultralight
From 8.8kg. Handcrafted in titanium with carbon fibre handlebars, fork and Superlight components.
Just as compact
Just as compact
4-speed gearing system expertly designed to fit inside the fold.
Front carrier block
Front carrier block
Brompton bags are expertly
engineered to sit securely on the
front of your bike with one quick
click. The unique mounting system
places the weight on your frame
instead of the handlebars. So, when
carrying loads, your ride remains
brilliantly stable.
TIG welded frame
TIG welded frame
This technique requires a high level of skill and coordination between hand, foot and eye. TIG welded titanium joints have a silvery bead; at times, it almost appears to have a mirror finish.
T Line Ceratech Black Gold - 4-speed Details Graphic T Line Ceratech Black Gold - 4-speed Details Graphic

Beautifully tough

T Line Ceratech is our lightest most advanced model with an all-new Cerakote® finish. The ceramic-based finish on our titanium frames provides an intense colour and an exceptional layer of protection—the high durability, low weight and resistance to wear make this a highly prized finish in the aerospace and automotive industries.
Beautifully tough

What is Cerakote?

Cerakote® protects, but it also embellishes. The matt metallic colour is deep, yet you can still see the beauty of the hand-welded titanium frame. When you lift your bike, it feels wonderful to touch, like velvet metal.
What is Cerakote?

The lightest Brompton.

An ultra-light titanium frame with over 150 specially developed weight-saving components. Three years of obsessive material choices and rigorous testing. Everything brand-new except the fold. Andrew Ritchie, our founder, obsessed over that 40 years ago. Never bettered, just refined, it's the original and still the best.
The lightest Brompton.

Great reasons to buy online

T Line - Ceratech Black Gold - 4-speed

Invention, innovation, and imagination have driven Brompton since founder Andrew Ritchie first engineered a folding bike to unlock the city. The original steel Brompton became a design icon, setting the standard for folding bikes for nearly fifty years.

Continuing this tradition, the T Line Ceratech takes urban cycling to a new level, handcrafted in titanium for strength equal to steel but at half the weight. Now available with a durable tech-ceramic Cerakote finish—normally reserved for spaceships and racing cars—this bike combines precision engineering with striking, futuristic design, making city rides feel extraordinary.

Every element of the T Line Ceratech is optimised for performance. Its TIG-welded titanium frame, superlight carbon crankset and saddle, Schwalbe One tyres, Tubolito tubes, and self-aligning hinge clamps provide a smooth, responsive ride. With a steel-armoured carbon seatpost, quick-release pedals, and low or mid carbon handlebars, it’s versatile, lightweight, and ready for any urban adventure.

4-speed
From 7.95 kg
Titanium
Specification
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
Tig-welded titanium frame in Ceratech Black Matt Metallic
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 freehub body
Front Wheel
Lightweight rim, double butted spokes and aluminium hub with sealed bearings and allen key axle
Tyres
Schwalbe ONE with Addix race compound 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 Urban

Reviews & Questions

T Line - Ceratech Black Gold - 4-speed

Delivery & Returns

HOME DELIVERY

Enjoy free delivery on all orders over £50. £4.95 delivery fee for any orders under £50. We aim to dispatch your order within 2 working days; sometimes this can be longer during busy periods. Once your order has left our warehouse, we’ll send you an email with tracking information. High-value items over £100 will require a PIN number, which is supplied to you by the courier; you will need to give this PIN to the courier on delivery.

Your bike will arrive ready to ride and all the kit you need to assemble the saddle yourself.

CLICK AND COLLECT TO YOUR LOCAL BIKE SHOP

Collect your Brompton bike from our nationwide network of accredited retailers and from our Brompton Junctions. Your bike will be expertly prepared and be ready to ride straight away. Any additional parts and accessories on your order will be sent with your bike.

RETURNS

Brompton is committed to quality; if our products have failed you in any way, please return them and we will either exchange them or give you your money back. If the product is faulty or has arrived damaged, we will reimburse the cost of return postage. Unwanted items may be returned within 28 days at your cost.

RETURNS INFORMATION

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