Brompton T-Line Review – The Trailblazing Titanium Folding Bike is a Huge Leap Forward

Brompton is a unique model in cycling. On the one hand, it appeals primarily to cyclists with the most advantageous degree, and on the contrary, it has a unique and elegant city that has led to collaborations with cyclists such as David Millar and high-end manufacturers such as Barbour. Brompton's new flagship titanium T-Line extends further on every front, because it could essentially be the most useful and fashionable bike Brompton has ever made.

Brompton T-Line's suggestion is an easy one. This is Brompton's lightest of all, and the most expensive.

In its lightest single-speed variant, the bike weighs just 7.45kg, while the City model is available with 4 gears in at a lower weight. A reported 7.95kg (full of mudguards, pedals and curler wheels). To put that into perspective, the entry-level Brompton B75 weighs in at 11.6kg, not even the heaviest in the group.

Rate the T-Line for the world of luxury street or gravel: a place where 4kg is cut off the body can be enough to have heavyweights squabbling in neutral bike ports.

Traditionally, it was not uncommon for the lightest WorldTour bikes to simply see the £10,000 mark, and with that in mind, Brompton's T-line ticket price of £3,970 just couldn't It looks very annoying. Anyway, it's a titanium folding bike that not only cuts 4kg less than a traditional metal bike but weighs a lot less than many of its full-size titanium street bike cousins.

However with such a massive launch, and such a hefty price tag, the big question is whether the Brompton T-Line is a lightweight gimmick or a real big step forward in efficiency. After six months practically on the T-Line in Brompton, and plenty of miles, I really feel sure of the response.

(Photo credit score: Future / Peter Stuart)

Titanium is An acquired style related to cycling. The unusual light titanium ash does not jump out to the ordinary spectator. In my years testing quality bikes, I've had no compliments on a titanium bike from anyone, but basically the most experienced bike follower.

Take a look at their muted tones from a distance and you'd be easy to miss the essential craft of this handcrafted UK-assembled Grade 9 titanium chassis. Enclosed, it's a precision-made bike and a production piece, and I love the T-Line for that subtle aesthetic. Much more than that is that almost every part of the bike was built by Brompton, within the UK. Running a brand new bike class with a caveat. “We all know we may be promoting additional bikes, but we are releasing a limited selection of bikes,” said Joel Natale, Head of Product Management at Brompton. Cycling News . “Making one of everything is a dodge, making 1,000 minutes the same approach is when it gets daunting.”

progress Welds and T-Line Building Amazing Bicycle Building Craft

(Photo credit score: Future / Peter Stuart)

But this first technological reservation seems to be misplaced. Drawing on Brompton's engineering and manufacturing expertise, the T-Line looks simply too full. This is not a V1, V2 or perhaps a V10 of this class of motorcycle – as an alternative to its design maturity it displays technology after technology of incremental improvements.

With so many new features on the T-Line, we could have expected some minor omissions, a joke here or there, but I struggled to find which part of the bike wasn't well thought out. From the titanium cable guides to the precision-welded tubes, the integrated entrance plate mounts to the fully cast aluminum hinge mounting plates, the T-Line looks very refined.

to an element that is most conspicuous in the fold itself, with each part snapping into another with seemingly tight precision. Staring long enough for any given person, part of the T-Line and a folded secondary function will quickly grow to be apparent—whether or not it's a saddle with a handgrip under the nostril with a mudguard with a pulley wheel mounted above it.

Brompton's intricate folding design means there are always additional options associated with folding to be found

(Image credit: Future / Peter Stuart)

In fact, foldable functionality isn't where this bike excels in regards to Brompton's various bikes – all of which feature the model's signature folds. As an alternative, each different factor of T-Line's efficiency and practicality is where it stands out.

Aside from the titanium that makes the body a bit hard to wash and prone to marks, to a reasonable degree, it beats the metal in every sense of the word at Brompton. At first, this is because of the burden.

Efficiency – chopping weight and getting solace

Our Brompton T-Line is available in 7.95kgs, but this features With all mudguards, curler wheels and pedals. Remove the 300g mudguards and can pedal 7.6kg – a weight few titanium street bikes can rival. Notable to many, however, carrying a 12kg foldable bike up the stairs is something no boarding traveler will forget. By lowering the burden to 7.95kg – Brompton has already reformulated the T-Line's handling benefit to a reasonable degree. This is a huge gain when zipping right into a crowded practice or squeezing straight into a crowded bar after work. While saving a Brompton e-bike can make pedaling simpler, this makes all things a lot more difficult, and this shouldn't be neglected. The bike, the high-quality impression on the ride from the light weight and titanium tubes is what made my biggest impression.

Given titanium’s status in the bike industry, we expect the Brompton T-Line to be smoother and more versatile at lower weight, but that wasn’t my experience.

Product Supervisor Joel Natalie defined that when it comes to stiffness, a bike maintains what metal does in efficiency phrases, “It maintains stiffness from one bike to the next, almost creeping into additional compliance, However, it has similar fine stiffness.”

“From the handlebars to the cranks, you’ll discover a little extra stiffness—and from the cranks when it comes to driving,” Natalie defined. “Although the elongated titanium stem has some flexibility in it, its shape is preferred within the nature of the design within the supplies.”

For me there's already noticeable response at the back end – where you use a large platform and lighter overall weight results in an eco-friendly power switch. With the help of its small diameter wheels, new lightweight Schwalbe One Brompton tires and the new model, the T-Line rides simply.

A titanium Brompton T-Line Urban leans against a navy blue wall

Brompton's T-Line uses new Schwalbe One tires and Tubolito latex inner tubes
(Image credit score: Future/Peter Stewart)

While this isn't actually a street bike in speed ferries, the T-line was simply faster than my ferry-loaded rider, and I happily found myself cruising through the streets of The capital, which is more than 30 km / h.

At the same time, he manages the line to gain additional solace and – most importantly – management at the expense of titanium. Compared to traditional Brompton, the titanium body bounces much less over bumps, and usually provides the rider with additional handling. So distinctive to titanium dream bikes like the Passoni or Moots – feeding street features through the pedals and handlebars without letting them bother the rider. You used to be very happy with your long-distance T-Line ride, and logged a number of 30-40km rides on the T-Line. , accompanied by a brand new but widely used one, performs a phenomenal half on that smoother ride with great quality too.

“This is the opposite of what we see on early carbon street bikes, which use outer layers of carbon in the seat base,” said Natalie, of the all-new T-Line Superlight seatpost. “You've got a carbon tube on the inside and you've got 0.3mm of metal sitting against his skin, simply to protect against the carbon counting, due to the repetitive motion of the transmission.”

Positive enough that, apart from raising and lowering the seat on every flight for months, there is no sign of it.

This brings us to the broader picture of the T-Line, and compliment updates that go beyond the titanium body.

Brompton T-Line titanium

Brompton's new T-Line is the model's first use of a carbon fork and A headset

(Image credit score: Future / Peter Stewart)

The wider picture

You'll be forgiven for overlooking that the T-line is a Brompton fir st foray into carbon forks, and a headset rather than the traditional feather stem. Next, we see an all-new frame — the previously mentioned Schwalbe One — all-new carbon handlebars, new model carbon seats and a nearly redesigned bike.

Among them a host of modern options, the T-Line showcases new Brompton model pedals. While the foldable pedals are actually part of Brompton's aesthetic, these CNC aluminum pedals offer a more flexible and lighter interface. , though, which means you can depress the short release on the crank to release the pedal, then place it directly into a magnetic mount behind the fork—precisely engineered so that folding out with the pedal in place results in no scratches under the tube—and it was all over Time is protected from blows or tremors. sprockets; I am a positive advocate of this 500g transmission system, because I greatly expanded the flex of the T-line. While I didn't wrestle when it came to versatility, in bad weather the gears can skip when loaded under excessive stress. However, I consider this small, moderately lightweight set of performance shift system, and in that sense, it does the job more than enough.

He may have focused on the widest part of the size variant – from the Tubolito Latex inner tubes to the carbon bar and foam grip – but the overall result was that after six months of driving, they each delivered their own personal appeal feature and can provide great upgrades. Brompton's metallic fashion has the seasons to return.

Brompton T-Line ahead of competitors

Brompton T-N Line is not a folding bike Ultra-light or ultra-luxurious on the market. I would argue, however, that it is the best. . There is a trade-off, although no frills when it comes to mudguards or mounts. From own experience driving it, the small carbon chassis could also be noticeably stiffer, but at the cost of quality handling and rides. This isn't quite a street-sweeping motorcycle like the T-Line.

The carbon body additionally does not fold itself, which means that the completed folded type is quite bulky. However, nothing can fold like Brompton. While the GoCycle isn't marketed for its foldability, it does keep the space it takes up while it's folded.

Brompton T-Line

Brompton T-Line

Brompton folded T line, left, and GoCycle G4, right.

(Photo credit score: Future / Peter Stewart)

We wonder why Brompton didn't choose carbon fibres, like GoCycle and Hummingbird bikes for them. While carbon could have saved weight, due to Brompton's aggressive folding motion, and narrow tube junctions, Brompton's designers felt titanium was a safer prospect—and that appears to be true. After carrying and driving it over several months, and even falling off it, I had a feeling this bike was sturdy when it arrived.

It's hard to fault the Brompton T-Line, even though it's an overvalued level
(Score credit photo: Future/Peter Stewart)



The Brompton T-Line is the reverse bike Passengers are cheap, and so spectators are welcome to enjoy the huge fare ticket. But if Brompton needed to build a very expensive domain, he might have paid a lot more and tried a lot less. For £3,970 it's a great motorcycle – albeit in a really small package. A bunch of improvements and new releases for Brompton, all of which confirmed the time check during our long-term inspection.

This is a machine that is so finely sharpened that I split hairs even thinking about methods that could be realistically improved. Only the transmission system leaves something to be desired, and even there I wouldn't sacrifice low weight for a higher gear shift. Our check ends with I struggle to think of my life without the benefit of a very lightweight bike that might fit in my desk and behind my sofa.

There might be absolutely no excitement as to why the T-Line boasts a long-running ready record from the second it's fired—just a nice piece of motorcycle design.

Scorecard Test and Feedback characteristics Notes classification

Design and Aesthetics

The iconic, gold-familiar folding bike. Restricted colors vary.



regardless About the transformation, the parts are distinct throughout

9 /10

Efficiency, Dealing and Engineering

for commuting, using public transportation and diving in bike paths in She is unparalleled


Weight Just change the game

10 / 10

deserves criticism

Expensive, sure, but there is a variety of value to what is on offer


General Degree


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