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Brompton Electrical evaluation: E-folding bike with a contact of F1!

The Brompton Electric is a folding e-bike that matches simply into your trunk and weighs lower than 20 kg – battery included!. An actual System 1 legend offered sufficient juice within the electrical motor to get it going as effectively. On this NextPit evaluation, I pulled away not solely from bicycles, but additionally from automobiles and bikes on the site visitors lights. Discuss an ego increase! You could find out simply how lengthy I used to be in a position to preserve my nostril in entrance of his detailed evaluation.


  • Megafast
  • Tremendous compact
  • Top quality workmanship
  • Good lighting system, good brakes


  • 30km vary solely at full throttle
  • Battery will get unfastened when touring on cobblestones
  • Very costly

Brompton Electrical in a nutshell

I do not assume it ever will get boring to trip the Brompton Electrical to the entrance on the site visitors lights and draw back from the indignant seems to be that ready cyclists throw your method at an unimaginable pace. The enjoyable issue by no means will get outdated with this e-folding bike, as you secretly know you are using with tires which can be far too small. Brompton’s legendary folding mechanism gives all the pliability you require at simply the precise weight.

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Admit it, you simply wished to see how the Brompton Electrical seems to be folded. As punishment, you’ll have to learn the complete evaluation now! 🙂 / © NextPit

Nonetheless, Brompton’s folding bikes are already costly within the first place, which results in excessive costs that start from $3,800 onward. Having mentioned that, tiny points like engine failures everytime you’re using on cobblestone paths turn out to be all of the extra unforgivable. Nonetheless, commuters who can afford or wish to finance the Brompton Electrical could merely decide it up for its standing image. That is particularly stark contemplating how the title Brompton emblazoned throughout the metal body is equated to a high quality, long-lasting product. 

Design and high quality

The Brompton Electrical is a folding e-bike and may thus be folded to the dimensions of your on a regular basis suitcase.
When folded, the e-bike solely takes up 65 x 58.5 x 27 centimeters of area, tipping the scales at barely lower than 17 kilograms with the battery connected to the entrance of the handlebar alongside the carrying bag. Alternatively, there may be additionally a bigger bag with further cupboard space, totally different handlebars, seat posts, and a alternative of two or six gears.

What I preferred:

  • Folding mechanism is lightning quick as soon as you’ve got mastered it.
  • Excessive-quality workmanship with cool consideration to particulars.
  • Suits in your carry-on baggage, trunk, and even on the passenger seat.

What I disliked:

  • Small wheels had been fairly slippery in moist circumstances.
  • Handlebar design prompted a sore spot on the within of the thumb throughout longer rides.

As it’s with folding bikes, we all the time have to tell apart between the unfolded state and the folded state with the Brompton Electrical. What’s intelligent with this design is the very first step in folding that includes the rear wheel, which then doubles up as a bicycle stand. It’s then the bike will stand on two small wheels, however with a relatively small wheelbase, it isn’t 100% secure, albeit practical.

Nonetheless, this small wheelbase is important in an effort to fold the bike right into a tiny pocket dimension with two extra subsequent folding steps. When totally folded, the Brompton Electrical is simply as massive as a suitcase and all through my evaluation, it managed match on the passenger seat of a VW Crafter in addition to within the trunks of a VW ID3, an Audi A5 Kombi, and a VW Polo. You virtually overlook simply how small it may be while you trip the Brompton Electrical.

It is because even with out electrical help, the Brompton rides very effectively. In case you had been to look ahead to longer rides, you’ll overlook that you’re truly using on a tiny bike. It is because Brompton managed to ship a superb handlebar, saddle, and pedal place that resembles that of a traditional bicycle. The one offered by the producer additionally got here with six gears.

The 6-speed model is dearer and subsequently, provides extra weight. Since I solely switched between third and fourth ‘gears’ on the sprocket more often than not within the evaluation, I might personally accept the cheaper choice with none hesitation.

Though Brompton depends on high-quality Schwalbe Marathon Racer tires, I felt relatively unsafe when using within the rain. The small tires all the time felt as if they had been about to slide away. Whereas I by no means skilled any harmful conditions, the engine was highly effective sufficient to spin the entrance wheel whereas I used to be in gear three underneath moist circumstances.

Earlier than we discuss in regards to the motor within the Brompton Electrical, there are three extra issues to know: Initially, you do not look majestic on the folding bike. That is much more pronounced for tall folks, which Brompton has considered with a telescopic seat publish and a better handlebar, making you look a bit just like the proverbial “monkey on the grindstone”.

Throughout my evaluation, nonetheless, I made a decision towards letting seems to be affect the general rating whereas biking. On the one hand, I do not care how I look on a motorcycle as I additionally trip with a helmet 90 p.c of the time (and that alone makes me look dorky), whereas then again, it is a function that each one folding bikes have in widespread.

MR 9299
The tiny wheels make the Brompton Electrical look a bit like a clown bike! / © Brompton /
Michael Romacker

Alternatively, Brompton’s bikes are identified for his or her sturdiness. Even with the electrical mannequin, the producer makes use of a metal body which does weigh it down a bit. In response to the producer, the manufacturing high quality requirements are so excessive that there are specialised workers who don’t weld the metal elements collectively, however relatively, solder them.

Final however not least, another criticism in regards to the bike’s design: On lengthy rides, I all the time ended up with a sore spot on the precise aspect of my thumb as a result of the pores and skin on that half stored on getting scraped at. Maybe I am simply as delicate as a fairly butterfly.

TL;DR: The Brompton will get full marks for design and high quality. To criticize it for not wanting elegant whereas using a folding bike is tough. It is because that’s one thing it’s a must to stay with with regards to folding bikes proper from the very starting. It’s extra in regards to the practicality and using expertise, and people are departments the place the producer actually will get all the things proper.

E-motor and driving enjoyable

Brompton bought the Williams System 1 and has used the latter’s experience to develop its very personal motor for the electrical bike. The motor has an influence of 350 watts and is adjustable in easy three steps and through a backside bracket sensor.
In response to the producer, the motor has been optimized to trigger as little resistance as potential with none additional help required. I have to admit, this endeavor has confirmed to be relatively profitable.

What I preferred:

  • Motor gives an infinite increase.
  • Sensor within the backside bracket may be very exact.
  • Management in three phases proved to be extraordinarily helpful.

What I disliked:

  • Motor cuts out if vibrations are too robust.
  • Companion app is simply obtainable for iOS till the top of 2021.

Brompton has positioned the electrical motor within the entrance tire. It seems to be a bit like a traditional hub dynamo that may be energy your bike’s lights when it will get darkish. The place within the entrance wheel makes you are feeling such as you’re being pulled relatively than being pushed. After the press bike tour organized by Brompton, I nonetheless had the sensation of being pulled ahead even after dismounting. One participant described an analogous feeling to me when requested. Nonetheless, it takes just some rides to get used to such a sense.

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The motor is situated within the entrance of the Brompton Electrical! / © NextPit

What you will not get used to is the enjoyment you’ll really feel while you have interaction the Brompton Electrical at site visitors lights. The motor has an influence of 350 Watts and presents much more energy than the VanMoof S3 (250 Watts). By the way in which, over in Germany, the utmost energy score for e-bikes stands at 500 watts. Right here is one other tip from a racing professional: The second gear on the precise thumb and the third help degree are the most effective combine that will help you pull forward of the pack rapidly. This manner, you’ll depart all the opposite cyclists behind – in addition to automobiles and bikes consuming your mud (albeit for just a few meters) with somewhat effort.

Gradients and powerful winds don’t pose to be a problem with a lot energy at your disposal. In case you want to take it straightforward, you may obtain a really balanced using expertise with one of many decrease gear ranges. It’s then the motor does exactly what it was designed for: to help you whereas biking.

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The controls reside on the entrance of the bag, and are nonetheless relatively straightforward to succeed in when using / © NextPit

In Berlin, nonetheless, it fails in its job when the going will get bumpy or tough. Apparently, the Berlin metropolis middle consists largely of historic cobblestone paths and because of the robust vibrations, the motor usually did not work. The explanation behind this? Brompton hooked the battery through a vertical holding mechanism on some contacts. In doing so, the quantity of vibrations it receives might be an excessive amount of, that the battery routinely switches off to your security. To treatment this inconvenience, I needed to take away the battery fully at instances.

By the way in which, the bike doesn’t supply so-called regenerative braking, i.e. charging the battery whereas braking and idling. On this regard, the producer informed me that calculations involving regenerative braking for the battery with regards to e-bikes is totally different from these in electrical or hybrid automobiles. The extra weight compensates for the achieve in battery energy, however due to the burden, you continue to find yourself with a internet loss in energy.

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Sensors within the backside bracket detect whether or not you might be pedaling or not / © NextPit

The companion app, which exhibits your pace, gives an summary of the service historical past and different data, and is simply obtainable for iOS as of August 2021. There shall be an Android model coming later this yr, in keeping with Brompton’s PR company.

TL;DR: Apart from its portability, the enjoyable issue is an actual purpose to purchase the Brompton Electrical. The bike lurches ahead in such a fashion that you are able to do nothing however smile in the course of the first few rides. Solely when the motor fails on cobblestones and app’s availability on iOS are the one two drawbacks, for my part.

Battery efficiency and sturdiness

The battery of the Brompton Electrical resides in a bag that’s connected to the entrance of the handlebar.
This can be a sensible design while you fold the bike as you both have a counterweight on the arm that doesn’t carry the bike, or you may sling the bag over your shoulder. The 70 km most vary definitely makes it stand out from different e-bikes.

What I preferred:

  • Straightforward dealing with of the battery.
  • 70km vary is great.

What I disliked:

  • Charger could be a bit fiddly.
  • Solely licensed workshops can restore it.
  • Many elements are custom-made.

Brompton said the vary of the 300 watt hour battery is anyplace from 30 to 70 kilometers, relying on the extent of help and situation of your bike route. In case you’ve already learn my earlier observations regarding using enjoyable, you’ll know that it was nearer to 30 km for me. In the course of the evaluation interval, nonetheless, I solely ran out of juice solely as soon as. And that was a great factor, as a result of it allowed me to find two different vital issues:

Firstly, using and not using a battery remains to be a pleasing expertise, because the motor truly presents little or no resistance. Secondly, the superb and vibrant mild nonetheless works when the battery is empty – which suggests you may nonetheless get round safely at midnight even if you end up all out of juice. That is undoubtedly a optimistic shock that I had not even considered earlier than the battery ran dry.

NextPit Brompton Electric 23
The connector for the battery is protected by a cap / © NextPit

The 70 km vary stands out in comparison with different e-bikes out there. The VanMoof S3 touts a most of 60 km alongside the Sushi Bike, whereas the Cowboy Bike 3 is ready to obtain what the Brompton Electrical can in our e-bike comparison. We should additionally do not forget that you’ll usually use the Brompton Electrical extra because the “final mile” trip.

Therefore, you may cowl distances of as much as 35 kilometers from the prepare station to work every single day, leaving within the morning and returning residence within the night comfortably. In case you plan for longer routes, you may nonetheless take the Brompton Electrical with you on public transport with out having to pay further.

The charger which it’s a must to plug into the again of the battery bag, sadly suffers from a drop in high quality in comparison with the remainder of the bike. It presents some LEDs for data, however doesn’t present the remaining charging time.

Charging time may be relatively lengthy at 4 hours in whole and sadly, I found that the battery was not charged the following morning regardless of leaving it plugged in throughout my evaluation interval – and this occurred twice! The explanation behind this? You need to first place the charger within the wheel after which plug in each collectively into the socket. Follow makes excellent, however nonetheless, it may be annoying. 

Brompton nonetheless presents a fast charger, which halves the charging time to 2 hours.


The Brompton Electrical receives an extra plus for its sturdiness. And there’s a quite simple purpose for doing so: many bikes within the metropolis are stricken by rust when left exterior to be battered by the weather day by day. With the Brompton Electrical, you may simply take the folding bike into your flat. The yard of my condo has many bike racks and not using a roof and I by no means take my heavy 0815 bike upstairs. It is just too cumbersome and takes up an excessive amount of area in my condo.

NextPit Brompton Electric 5
By default, the battery sits in a shoulder bag. I sat down subsequent to it as a measurement comparability / © NextPit

Brompton additionally produces every bike by hand in a manufacturing unit in London. In response to Brompton, high-quality supplies ought to simply guarantee a lifetime of over 20 years. Whether or not the battery will final that lengthy, nonetheless, is a questionable affair for the electrical mannequin. What’s additionally thrilling is the worth of the bikes that have a tendency to stay secure over time with out affected by an excessive amount of depreciation.

TL;DR: For the notorious “final mile” journey, the battery lifetime of the Brompton Electrical is fully ample. Nonetheless, solely 30 kilometers are potential when the climate is sizzling, and likewise do think about the relatively lengthy charging time of 4 hours through the included energy adapter. For an extra cash, nonetheless, there may be an non-obligatory quick charger that reduces the charging time to 2 hours.

How and the place do I purchase the Brompton Electrical?

You’ll solely have the ability to discover Brompton bikes in case your bike vendor is a certified vendor.
Due to this fact, I’ve included this brief phase within the evaluation, the place I’ll break down the totally different pricing tiers and buy choices for the Brompton Electrical. Let’s start with the chilly, laborious info: How a lot do you should price range for should you’re excited about selecting one up?

  • 6-speed mannequin: From $3,800
  • Bigger bag: Metropolis Bag for $250 (non-obligatory)

Relying on the place you reside, sure sellers would possibly present the correct of financing plans to fit your price range. Do take observe that Brompton doesn’t supply any choices for leasing.

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Once I heard the value of the Brompton Electrical, I ran away / © NextPit

Do you wish to discuss to a motorcycle vendor in regards to the choices or trip the examined e-bike your self? Then you may find an area department via the Brompton website which is able to present you all licensed sellers in your space.

Brompton Electrical technical specs

Fashions & technical knowledge

Function 2 pace 6 pace
Folding measurement 645 x 585 x 270 millimetres (HxWxD) 645 x 585 x 270 millimetres (HxWxD)
Weight 16,6 kilogram 17,4 kilogram
Max. Load 110 kilogram 110 kilogram
Brakes Twin Pivot Twin Pivot
Battery 36 V / 300 Wh / 2.2 kilograms 36 V / 300 Wh / 2.2 kilograms
Vary 30 to 70 kilometers 30 to 70 kilometers
Sensors Torque and cadence sensor built-in within the backside bracket Torque and cadence sensor built-in within the backside bracket
Motor BLDC entrance wheel motor with 250 Watt rated energy BLDC entrance wheel motor with 250 Watt rated energy
Max. pace Pace approx. 25 km/h approx. 25 km/h
Colors Black Gloss, Bolt Blue Lacquer (examined), Turkish Inexperienced Black Gloss, Bolt Blue Lacquer (examined), Turkish Inexperienced
Worth from €3,320 from €3,495


Closing verdict

Spending just a few weeks with the Brompton Electrical resulted in a collection of optimistic surprises.
The sheer diploma of flexibility that the bike presents and the excessive enjoyable issue converse for themselves. On the similar time, you get pleasure from a high quality trip that isn’t solely enjoyable however protected. It’s distinctive within the sense that you will discover tiny particulars on the bike such because the folding directions within the brake levers. The supplies used are so strong and of such prime quality that biking turns into intuitive and protected regardless of the comparatively tiny wheels.

The brakes grip effectively in site visitors, and there have been many instances once I was in a position to rapidly escape from doubtlessly harmful conditions with the electrical motor. Due to the excessive energy and dependable pedal power detection, you should use the facility of the hub motor in a managed method when required. Such conditions may also merely imply beating automobiles from on the site visitors lights.

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Folding is the largest power of the Brompton Electrical / © NextPit

The folding mechanism is extraordinarily straightforward and turns into second nature after some follow, permitting you to fold and unfold the bike in underneath a minute. Though inserting the battery in a handlebar bag is a useful transfer, Brompton wants to return to phrases with connectivity points the place robust vibrations are involved, as that is likely one of the only a few issues that wasn’t enjoyable in regards to the e-folding bike throughout my evaluation run.

Final however not least, this might additionally boil right down to the truth that the bike was loaned to me at no cost. To fork out near $3,800 of my very own cash will surely change the way in which I take a look at it in a evaluation. The Brompton Electrical may be very costly, as anybody who had been remotely excited about it balked once I knowledgeable them of the value in the course of the few weeks I rode it.

NextPit Brompton Electric 16
You could find little icons and folding directions in every single place on the bike. That is actually charming / © NextPit

Nonetheless, I nonetheless do not assume this worth is unjustified and over a interval of 20 years, you may say that it is a superb funding to think about.

Disclaimer: Brompton invited Nextpit on a motorcycle trip in the beginning of the evaluation interval and acquired me drinks and meals. The advantages offered from the outside press journey had no bearing on this evaluation.

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