Brompton T-Line Titanium Folding Bike - Urban 4 Speed

* Get in touch to pre order your T-Line today - 2-3 week lead time.

Brand-new everything. Except the fold.

The all-new ultra-light titanium frame. 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.

Ultra-light. As strong as steel

The entirely re-engineered T Line titanium frame weighs 37% less than our original all-steel equivalent and is just as strong.
At 7.45 kg in total, the T Line is comparable to a carbon road bike. Yet, it can be comfortably ridden by a 110kg rugby player. And withstand the punishing impact of the city.'

Compact drivetrain, designed ground-up

Nothing rides like it—the entirely new* drivetrain. Designed ground-up to sit inside the fold, to be light as possible and for optimal city performance. The carbon crankset gives greater power transfer. The 60-gram derailleur delivers smooth shifting in a small package. The new gear-ratio, tested from Amsterdam to San Francisco, perfected for city roads. *patent-pending 

Pioneering Carbon Seat Post

The first bike in the world with a steel-armoured carbon seat post. We know because we invented it.
Ordinary carbon seat posts are stiff, strong and lightweight, but they can't stand up to the daily use of a Brompton. So, we developed a new process to reinforce the limitations of carbon with 0.3mm steel armour.
The result: a superlight seat post that can take the abrasion of the fold, 110kg load and all-weather riding. 

Every detail sweated Faster to fold, easier to carry

We studied every interaction with the folded bike and improved it.
New: self-aligning hinges, always set-to-go. A spring-loaded handlebar catch that effortlessly clicks. Larger diameter rolling wheels go with the flow—an easy-grab carbon saddle with an integrated nose handle.
Nothing folds like this Brompton, not even other Bromptons. 

A seriously fun ride

Brompton ride dynamics have always made owners smile, and now they're elevated in every way.
Carbon cranks and cast Ti bottom bracket shift your power for a faster ride. Naturally, shock-absorbing titanium smooths out the road. The one-piece carbon fork and wider carbon handlebars make it stiffer and even more responsive. This is a serious machine that's seriously fun to ride.
Ready to fly through the city? 

Urban - Weight from 7.95 kg

A complete ultra-lightweight performance package built to fly around the city and beyond. Precision-engineered titanium. Ultra-strong and ultra-light. The all-new compact 4-speed gearing system optimised for city riding. Faster, smoother folding mechanisms. 110kg load carrying for you and your luggage.

SPECIFICATIONS

Main frame: Grade 9 titanium tubes, welded main frame with cast titanium bottom bracket manifold

Headset & Stem: Grade 9 titanium diameter tubes with integrated headset and spring loaded steerer catch hinge

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

Weight: 7.95kg

Folded Dimensions: 645mm (H) x 600mm (W) x 320mm (D) (25.4in x 23.6in x 12.6in)

Saddle: Superlight saddle with carbon rails and base with integrated carry handle and mount

Seatpost: Superlight seatpost with carbon core and 0.3mm steel armour. Standard length for up to 33”/84cm

Seatclamp: Machined aluminium seat clamp and rear frame clip in anodized matt black finish

Grips: Superlight lock-on foam grips

Pedals: Superlight cnc aluminium pedal set with left hand QR pedal

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

Front Wheel: Lightweight rim, double butted spokes and aluminium hub body with sealed bearings and allen key axle.

Rear Wheel: Lightweight rim, double butted spokes, aluminium hub body and 4 speed freehub body

Tyres: Schwalbe ONE with Addix race compound and v-guard puncture protection

Tubes: Tubolito S-tubo 34g tube with presta valves

Chainset: Superlight carbon crankset with hollow BB30 axle, integrated spider, 50T chainring and chainguard

Bottom Bracket: FSA Mega Evo Bottom Bracket

Derailleur: Patent pending direct mount 4 speed derailleur

Sprockets: 11-13-15-18 tooth

Shifter: 4 speed trigger shifter

Chain tensioner: Advance chain tensioner with replaceable hanger mounting

Handlebars: 31.8mm Superlight carbon low handlebar in 560mm width

Front carrier: Large diameter front carrier block adaptor for all types of Brompton luggage

Mudguards: Curved profile mudguards with titanium stays and rubberized flap