Lessons from the Industry

The bicycle drivetrain started as a direct mount application where the pedals were attached directly to the hub. The use of a chain in the form of a single-speed drivetrain was the next phase of evolution. The possibility of changing gears rapidly while riding followed next with the aid of a derailleur. This is the phase we are now still, but this needs to change.

E-bikes create a whole new set of requirements for the drivetrain – which the Revonte ONE Drive System solves brilliantly. Read further to learn why that is.

A Brief Primer

The addition of electric assistance to the drivetrain creates a whole new set of design conditions and demands. When it comes to e-bikes, the technology used in traditional bike can’t be fully adopted – or not at least with the assumption that the performance will be flawless across the board. 

When it comes to other components, such as the frame, cockpit parts, suspension and even brakes, the current technology serves us well when it’s adopted e-bike applications. The drivetrain, however, is of special interest in this case. 

The addition of electrical assistance with the need for fast, reliable and shifting creates a whole new situation that hasn’t existed before the era of e-bikes. This leads us to the topic of loads. 

Low and High-Loads

The traditional bicycle drivetrain can be defined as a mechanism that’s subjected to low-loads, at least with the majority of use cases. A strong rider can without a doubt apply a respectable amount of torque and power to the pedals, but when compared to figures seen in industrial applications the numbers are meagre at best.

This makes the bicycle drivetrain a low-load application which the technology used so far has been able to cope with. 

The situation changes, however, when a powerful e-bike motor is added to the equation. In practical terms, it can double the torque and output that the drivetrain components are subjected to. Now we move on to the high-load territory. When talking about demanding applications like cargo e-bikes, this matter gets even more pronounced. 

A chain can handle loads like this without a problem, but the same can’t be said about the entirety of the drivetrain. As it’s often said, a chain is only as strong as its weakest link. Interestingly, the chain isn’t necessarily the weakest link in this scenario, but how it’s used. A chain will do its task diligently, but moving it sideways from one cog to the next under tension creates a set of problems – as most e-bike enthusiasts have surely noted.

Things That Used to Matter

Historically cyclists have been nearly obsessed with weight which has led to the use of “materials” such as drillium. When not taken to the extreme, making bikes and other human-powered vehicles responsibly light makes sense. The power to weight ratio does matter somewhat, whether one likes it or not. 

With the advent of e-bikes, the set of circumstances and limiting factors we are dealing with are quite different! First of all, when the assistance of the drive unit is added to the equation, the weight of the bike becomes almost a non-issue. Trying to make e-bikes as light as possible in exchange for performance and/or durability is an exercise in futility. 

The same line of thinking applies to efficiency. With traditional bikes, efficiency is best kept in the high 90’s or so, but with e-bikes, one gets a lot more leeway when the drive unit is churning with steady assistance of 250W – an output that will take a considerable amount of training to sustain for hours on end.  

Tried and True Solutions

Traditional bicycle drivetrains tick the boxes somewhat well when it comes to efficiency and low-weight. When it comes to e-bikes, these criteria become nearly marginal. Instead, reliability, robustness, easy shifting and low maintenance are things that are wanted.

A quick look outside of the bicycle industry gives obvious clues of the direction of what a winning drivetrain would look like. When it comes to automotive, industrial or even motorcycle applications, in none of these (or very rarely at least) you see a chain or a belt transferred from one cog to the next. Instead, gearboxes and other similar robust and oftentimes enclosed systems are more than prevalent. 

When it comes to e-bikes, we can do better than what’s available currently. This is where Revonte ONE Drive System steps in; a robust, reliable and low maintenance transmission. And we haven’t even mentioned the automatic stepless gearing feature which will provide an unprecedented ride-experience

In Summary

Until now bicycles have been optimized around weight and efficiency. Although still somewhat important, they are far from the top of the criteria list when it comes to e-bike applications. Traditional bicycles are in the low-load category when it comes to drivetrain characteristics. In the case of e-bikes, we are moving significantly closer to the high-load territory and its accompanying design conditions. 

This simple characterisation should be taken into account in the design of the whole drivetrain, and that’s what we are doing with the Revonte ONE Drive System while also improving the ride-experience significantly; just pedal and the bike will do the rest!

This simple characterisation should be taken into account in the design of the whole drivetrain, and that’s what we are doing with the Revonte ONE Drive System. It’s more than capable of handling the high demands of a modern e-bike power transmission while also improving reliability and last but not least, the ride-experience itself; just pedal and the bike will do the rest!

Video: Revonte ONE Transmission Explained

How does the Revonte ONE Drive System actually work? 

That’s one question we get asked – a lot! The functioning principle behind our drive unit is surprisingly simple. The basic understanding can be reached rather quickly, even if one does not calculate gear ratios as a leisure pastime. 

In order to make things more simple, and save time on both ends – yours and ours – we made a video that takes a deep dive inside the Revonte ONE Drive Unit. With the aid of some neat animation work, one part of the 

How a complex transmission and an e-bike motor can be fitted in such a small package? Watch the video to learn more! 

If a written version is your preferred format in learning new things, a text version with some illustrative photos can be seen below.

In a typical transmission system, a lot of gear pairs are needed to provide a wide range of gears found on a modern bicycle. Until now, this has been accomplished by running one or more sprockets in front and a cassette in the rear which can have up to 12 sprockets. In the Revonte ONE Drive System, the whole complex array of sprockets has been replaced with simple planetary gear.

Components

A planetary gear consists of three parts:

  • Sun gear is located in the center.
  • Planet gears are the three small gears that connect the inner and outer parts of the gear system.
  • Ring gear is the outer ring. Opposed to the other parts of the planetary gear, the teeth profile is found on the inner surface. It’s also the largest in diameter of all of the three parts.

Function

In a typical planetary gear system, the ring gear is stationary while the sun and planet gears are free to rotate. This type of arrangement provides a fixed gear ratio.

In our system, all three parts of the planetary gear system are free to rotate, including the ring gear. Thanks to this, the Revonte ONE Drive System provides a continuously variable transmission which is unprecedented in the bicycle world. The same technology has been used with a proven track record in automotive and industrial applications. 

The ring gear (the big ring with the teeth on its inner surface) is connected to the chainring, and thus the cranks. The power produced from the drive unit and by the rider is transferred to the back wheel by a chain or a belt

The planet gears are connected to the pedal axle with a clutch mechanism, which enables independent function between the two, and consequently engagement when pedaling.

The sun gear is rotated by the electric motor. 

The Automatic & stepless function

The secret sauce behind the Revonte ONE Drive System is found in the planetary gear and how its configured to the electric control motor. When the control motor is idle (e.g. it does not rotate), the drive unit runs on its lowest gear.

Consequently, when the control motor rotates the sun gear, gearing increases. 

Running Double Duty

As you might have deduced already, the Revonte ONE Drive System has two electric motors: the control motor and the assistance motor. For the drive unit to work, the power of the control motor needs to match the power of the rider. The power produced by the control motor isn’t wasted, though. All the power produced by the motors is converted to a propulsive force moving the bike forward. 

The assistance motor is connected to the ring gear, and thus also to the chainring. 

Thanks to the unique construction and the two electric motors, the Revonte ONE Drive System can double the rider’s power output and torque! On top of this, the peak outputs can be reached starting from 0rpm, which is especially beneficial for steep hill starts or cargo e-bike use, for example.

Now you have a basic understanding of what’s happening inside the Revonte ONE Drive Unit, and we hope the video, and the accompanying text managed to satisfy your curiosity.

Make sure to follow our YouTube channel and social media feeds to stay up to date!

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10 Reasons Why Single-Speed Drivetrain Makes Sense for E-bikes

A lot can be said about bicycle drivetrains – and even as much has been done in order to make it more simple, efficient, compact or lightweight. True breakthroughs have been a rare delicacy despite the considerable effort that has gone into improving bicycle drivetrains. That has been the situation until now, before the advent of the Revonte ONE Drive System and the ingenious and remarkably simple drivetrain solution it employs.

Read further to learn why single-speed drivetrain is the winning solution in e-bikes in every way. 

Freedom of design. The simple structure of the single-speed drivetrain frees a lot of real estate around the bottom bracket and the rear axle. This in turn enables designs that would be out of bounds with traditional derailleur setups.

Take our partner Lavelle Bikes for example. Their single-sided rear triangle is a prime example of a high-level design that takes advantage of this possibility. The end result is a true eye-catcher.

Simple, even elegant looks. Even though bicycle design isn’t a beauty pageant, the looks do matter. Getting rid of the protruding, and sometimes even obscure-looking, rear derailleur makes bicycles a lot more pleasing to the eye. 

It’s not a coincidence that there’s a certain pull or attraction towards track and fixie bikes, and we bet that part of it is because of the simple looks and structure. Now the same feature can be found in e-bikes as well.

Robust and reliable. How many times have you had “a mechanical” during a bike ride, e.g. meaning a failure of some drivetrain component? The odds are that at least once, and most likely the correct answer is a lot more than that. The single-speed drivetrain isn’t bombproof, but it’s more reliable and robust by several magnitudes than the current derailleur systems. 

Clean shifting. When you shift from one gear to the next or jump over many gears at once, it should not be accompanied by a sound that something is exploding in the drivetrain. Interestingly enough, this is the situation with current drivetrains, especially when electrical assistance is involved. 

The automatic and stepless operation of the Revonte ONE Drive Systems makes these destructive and expensive-sounding gear shifts just a distant memory in the past. And it gets even better than that; the automatic mode takes up the shifting duties so that the rider can focus just on the ride itself!

No need for adjustments. Stretched out cables, misaligned gear hangers, and the usual culprits that plague the traditional drive systems are another distant and unpleasant memory when using the Revonte ONE Drive System. The drive system is controlled fully electronically, so there are no mechanical parts that need to be adjusted over the bike’s lifetime. 

A lower barrier for simple repairs. If you’re not an avid cyclist, a relatively simple repair like a tire replacement can be a daunting task because of all the components and moving parts involved. The simple single-speed drivetrain makes all the repairs and maintenance more simple by several factors!! In other words, you don’t need a PhD in bicycle mechanics to up for the task. 

Optimal weight distribution. When it comes to bicycles and other human-powered vehicles, weight does matter. One could argue that where the weight is located matters just as much. With the Revonte ONE Drive System the weight distribution is as optimal as it can get – low and in the middle of the bike. This brings several benefits related to the ride characteristics of the bike and smaller unsprung mass when it comes to full-suspension e-mtb’s.

Longer service intervals. Narrow chains and cassettes consisting up to dozen cogs are prone to wear and tear caused by regular use, no matter how dutifully the drivetrain systems are kept clean. With the Revonte ONE Drive System and the single-speed drivetrain it employs, the service intervals can be significantly lengthened – just clean and lube the chain once every 1-2 weeks, and you have your bases covered. 

If one is looking for an especially care-free solution, then a belt drive provides a very tempting option. “No grease, no rust”, as they say at the Gates – the leading belt drive manufacturer. According to testing performed by Gates, a belt drive can handle as much as twice the mileage compared to a chain.

Affordable spare parts. When you have a simple chain (or a belt for that matter), one chainring and one cog, replacing even the full drivetrain become much, much more affordable compared to traditional solutions. Less time and money spent on servicing is a plus on our books!

A very high degree of compatibility. The number of standards and the lack of cross-compatibility is nearly a laughing joke in the bicycle industry. 

Can you fit this cassette on this type of freewheel? Yes, if you replace the driver, buy these two adapters, and purchase a different chain

A conversation like the above is almost too commonplace. With the single-speed drivetrain, the cross-compatibility issues become nearly obsolete. Just get a chainring and a cog in the correct sizes, install the chain (or purchase a belt) in the correct length and you’re off to the races. 

A high degree of compatibility not only makes life easier for the end-users, but also for the bike manufacturer. Fewer product variants mean smaller and simple inventory. 

In closing

In a way, it’s been a full circle. The application of chain drive into a bicycle marked the revolution of modern bicycles which we are still witnessing today. Over the decades, the number of cogs on the rear cassette increased within the available space constraints. The latest evolution of bicycles is characterized by the addition of electric assistance and dropping the number of chainrings and cogs back to one. 

Make no mistake, though. A simpler solution does not equal fewer features or poorer ride characteristics. Welcome the Revonte ONE Drive System and the new era of e-bikes. 

AKKU – The most Versatile E-bike Battery In the Game

From the start, the Revonte ONE Drive System was planned to be a complete system that offers a one-stop solution for e-bike manufacturers. An essential part of this is the energy storage system, i.e. the battery. The Revonte AKKU complements the Revonte ONE Drive System exceptionally well, thus making the drive system complete.

Read further what makes the AKKU the most advanced e-bike battery in the market. 

Configurable by Nature

A high degree of configurability runs deep in the core of the Revonte ONE Drive System. Consequently, we wanted to keep this overarching principle in mind when designing our battery. It would make little sense to design the most configurable and advanced e-bike drive system on the market only to later limit its capabilities by an additional component.

Needless to say, we are very pleased with the final product and the Revonte  AKKU crossed all the boxes it was intended to, and even more. In the following, we cover the main features found in Revonte AKKU and why it’s the most advanced e-bike battery in the market.

Two models

From the start, it was decided that two models will be offered in order to fulfil match every use case and price point found in the market. 

Looking for a more affordable bike and long-range isn’t on top of your priorities? Then a battery with a smaller capacity will serve its purpose more than well and it makes little sense to pay extra for the energy storage capacity which isn’t needed.

On the other hand, if long-range and ample battery capacity is of the essence, then it’s best to choose a model with the biggest battery possible, and this is where the Revonte AKKU truly shines with its Smart Linkin Feature which is covered later. 

The two models are named according to their capacities. The AKKU 5 has a capacity of 530Wh, whereas the AKKU 7 boasts a capacity of 705Wh. Both models use the latest 21700 Li-ion cell technology which ensures long battery life, and excellent properties when it comes to charging and high discharge currents. The latter is vital for high power peaks and high-torque situations of which the Revonte ONE Drive Unit is capable of. 

Interchangeable Sizing

Lot’s of functions and configurations with a minimal amount of product variants. This is the ethos of the Revonte ONE Drive System and the fact that the ONE Drive Unit can be fitted to any type of e-bike, whether it’s high performing e-mtb, commuter bike or cargo e-bike, is a testament to that. All the finer tuning and configurations are done solely by software.

Both AKKU 5 and AKKU 7 share the same physical dimensions to keep the possible product and design variants at a minimum. This is especially beneficial from a bike manufacturers point of view since there’s no need to modify the battery compartment and interface of the frame depending on which AKKU model is used.

Besides this, the end-user has the freedom to upgrade to the larger AKKU 7 model later on, if more range or just longer timespans between recharging are to be desired.  

Smart Linking Feature

Last, but definitely not least is the Smart Linking Feature which makes the Revonte AKKU a true outperformer in the e-bike battery game. Thanks to the forward-thinking battery management system, BMS for short, up to four AKKU batteries can be connected in parallel, thus bumping the overall energy storage up to over 2.8kWh!

This amount of energy will keep a cargo e-bike going a full work shift will still leaving some “juice” in the tank. Ample battery capacity enabled by the Smart Linking Feature will benefit more conventional bike types as well. For example, embedding two AKKU’s in the downtube of a traditional e-bike produces a combined battery capacity of 1410Wh, which has been unheard of until now.

Sure, it does come with some additional weight, but in applications where exceptionally long ranges are high on the priority list, this is an option that can be built without any additional components or parts. All the “smarts” are already included in the highly developed BMS.

A Result of Collaboration

The Revonte AKKU was developed in collaboration with AKKU Vision GmbH, a leader in battery development from Germany.

The end product and especially the features it offers distinguish it in the market by a clear margin: latest Li-ion cell technology, easy customization for e-bike manufacturers, and the Smart Linking Feature which can be found only from the AKKU-powered Revonte ONE System.

One Drive System with many possibilities to power it. Choose the one that suits your needs the best.

Stepless Transmission Makes a Revolutionary Ride-experience

Almost since the advent of a modern bicycle, the stepless transmissions – and internal gearing solutions in general – have been the subject of plenty of discussions. Until now, the practical applications have been far, and between which is related to the criterions bicycles pose the gearing system used.

In this article, we’ll take a look at the challenges the bicycle gearing systems impose to the design, and most importantly, the practical implications of the stepless transmission which the Revonte ONE Drive System enables. Hold on tight and enjoy!

Bicycle Drivetrain

“If it would be easy, everybody would be doing it.”

This certainly holds for designing bicycle drivetrains since coming up with a good, and most importantly, an applicable solution is a tricky proposition. Since bicycles are (mostly) human-powered, a high degree of efficiency is of the essence. The oat-powered combustion engines, also known as humans, do not produce watts to spare. Therefore, high efficiency is needed to keep the bike moving in an efficient manner.

Not only that, there’s a weight limit – at least theoretically. Cyclists are notorious when it comes to making their vehicles lighter, and therefore anything that adds even a bit of weight to the bike is at least initially met with a cringe, even though the benefits would be otherwise clear. 

By now it comes quite evident why bicycle drivetrains have remained relatively unchanged for a long period. As the saying goes: long-lasting, lightweight, and cheap – pick any two. 

That is until now, however. The Revonte ONE Drive System is about to change that. with its ingenious design which combines a robust mechanical design and sophisticated control software all in the same package. To get an idea what the former looks like, refer to the previously published article at Pinkbike.

Pinkbike.com – A Look Inside the Automatic and Stepless Revonte ONE Drive E-Mtb System. 

The Human Element

Cadence is the speed of which the rider spins the pedals, and therefore the cranks attached to them. Cadence is quantified with rotations per minute, rpm’s for short. If the rider spins the pedals 80 times a minute, that would give a cadence of 80rpm and so forth.   

A lot of testing, spreadsheets, and sweat has gone into finding the optimum cadence when it comes to power production and efficiency. To make the (very) long story short, no perfect cadence exists. Instead, there’s a range in which the majority of the riders fall. Oftentimes the optimal range falls between 80-90rpm. Individual differences play a role as does riding experience; more experienced riders tend to favour slightly higher cadences. The preferred cadence is also task-dependent; riding on a steady pace is another matter compared to an all-out sprint.   

The most-honed pedalling motion has even a dedicated word for it – souplesse.

Riding with Indexed Gears

Anyone who has thrown their leg over a bicycle knows that keeping the pedals spinning close to optimal cadence is the ticket for enjoyable ride-experience and efficient locomotion. The optimal cadence range is largely determined by the function of the nervous system and the force-velocity relationship of the muscles involved. As anyone can surely attest, producing a good amount of force against the pedals gets quite challenging, especially if done for long periods of time. 

With traditional gearing, the rider goes through the gears to stay in her or his optimal or preferred cadence range. When accelerating, the rider goes through the gears since there’s a feeling of “spinning out”. An analogy of a traditional car isn’t far off. When accelerating after a stop in traffic lights, one needs to go into 2nd gear, then 3rd etc., to not to rev out the engine. 

The Stepless Revolution

The ingenious design of the Revonte ONE Drive System turns the ride-experience nearly upside down – and in a good way! When accelerating with traditional gears, the cadence starts from zero and increases to the riders preferred range which is followed by going through the gears in a step by step fashion.

With the Revonte ONE Drive System, the rider reaches the preferred cadence sooner, and can simply hold it almost independently to the speed of the bike. Riding has never been so easy – just pedal and ride! A schematic photo below illustrates the differences between the traditional gears and the Revonte ONE Drive System of which function is illustrated by the slashed line.

A schematic illustration about the differences between indexed and steeples gearing.

Configurable by Software

The goodness does not end here. Besides the sturdy and enclosed mechanical design of the Revonte ONE Drive System, the assistant characteristics and therefore the ride-experience can be tailored according to the type of the bike by the manufacturer, and later by the end-user, meaning the owner of the bike.

Cadence, which has been mentioned several times already, is just one of the many variables that can be tailored via our mobile application. 

Do you want your e-bike to behave like a sports car with poppy acceleration? No problem, it can be done. Or do you prefer to have a more mild-mannered bike which adjusts to the changing situations more calmly? That’s on the menu as well. On top of these, the Revonte ONE Drive System can be set emulate a traditional indexed-shifting mode as well if that’s preferred in certain situations. 

Advanced mechanical and software engineering are combined in the Revonte ONE Drive System, which brings a ride-experience with unprecedented features. 

Cargo E-bikes – What It Takes to Be a Winner?

On our previous post, we took a look into EAV and their vast range of cargo e-bikes. We are especially excited to be partnering with a company who shares the same forward-thinking philosophy as us, and that they’re quickly established the pioneer status of the rapidly growing cargo e-bike segment.

In this post, we take a look at what it takes to build a market-leading cargo e-bike and what demands it poses to the drive system.

Metrics Matter

The cargo e-bikes can be considered as a high-performance sector, even though this might not sound intuitive. Moving heavy payloads, and accelerating up steep inclines poses great demands on the drive unit. Even though Revonte ONE Drive System has a lot more going on than just performance metrics, it has plenty of brawn in the form of high torque and peak power to back up the promises. 

See a practical demonstration of the torque capabilities in our recent video.

To power a cargo e-bike, not to mention a heavily loaded one, an ample amount of torque is needed. The ease of use is maximized by our unique stepless and automatic assist mode – no need to change gears, just pedal and enjoy the ride!

Go the Distance

The demands of high torque situations and appreciable payloads come with a cost, and the currency in question is energy. In order to have a respectable range and a battery life which covers an entire workday, we’ve developed the Revonte AKKU – the most versatile e-bike battery in the market.

By using the latest 21700 Li-ion cells the AKKU offers excellent energy storage capabilities, high outputs to power even the most demanding situations, fast charging and long life. The AKKU was developed in collaboration with Akku Vision GmbH, a leader in battery development from Germany. 

Two models will be available: AKKU 5 and AKKU 7. The former has the capacity of 530Wh, and the latter 705Wh, respectively. Different capacities are provided to meet every price point and need in the market. Despite the different capacities, both models share the same physical dimensions, making them interchangeable. 

What makes AKKU a true powerhouse in cargo e-bike use is its unique Smart Connection feature which makes it possible to connect up to four AKKU’s in parallel, therefore giving a combined capacity of over 2.8kWh. Smart Connection function has the flexibility to the extent that it can be used with AKKU’s of different capacities, and charge states. All this can be done without any additional devices or electronics, thanks to the smart in-built battery management system AKKU has.

Special Requirements 

EAV has its finger on the pulse when it comes to the requirements specified from the industry – and by this, we mean some of the biggest players in the world of logistics. It goes without saying that we’ve listened carefully what they have to say.

Cargo tracking and inventory requires a high level of connectivity. We have met this criterion from the start since our drive unit has in-built 4G, GPS and Bluetooth. Whatever the task, provided the relevant software architecture exists, our drive system can log, track or sort it. 

Remote diagnostics is another feature we’ve had on our spec list from the start. Thanks to the powerful software humming inside the Revonte ONE Drive System it has more than adequate capabilities to recognize and communicate any detected problems to the user and further up the chain if needed.

Consider the End-user

When designing a product, it is imperative to consider the requirements posed by all parties in the chain: manufacturer, customer, and end-user. As can be seen from the broad range of EAV’s fleet, their products are directed mostly to professional use. When it comes to commercial applications, especially in the field of logistics, the three things surface themselves time and time again. 

Efficiency, reliability, and sustainability.

Since energy stores are finite (applies to both; battery and the rider), the drive system needs to highly efficient to prevail in the competitive market. Reliability is nearly self-explanatory; non-moving cargo e-bike does not transport any goods and is more of a liability instead of an asset, which holds true to any type of vehicle used in logistics.

The highly configurable nature and the fact that the Revonte ONE Drive System is compatible with any type of bike with no variations in hardware makes it a winning choice for cargo e-bikes. Our partnership with EAV will be a testament to that. 

Meet EAV – The Leader of Cargo E-bike Development

As you might remember from our previous press release, we have partnered with EAV who is the leading the development in the field of cargo e-bikes, and some might say that even in logistics. EAV shares the same forward-thinking ethos as we do which becomes obvious by just looking their lineup. Since the whole cargo e-bike sector is undergoing rapid growth and development we found it timely to introduce EAV in a more detailed manner.

The Missing Link

Humans have always had the need to move and transport goods since the origin of trade. The means of transport have improved greatly, from donkeys to locomotives and delivery trucks. Despite the great progress, there are still big challenges to solve. Interestingly, the weakest link in the logistic chain is the very final one, the last mile. This is especially true in modern urban environments which are densely populated, often overly built up, and therefore difficult to navigate through. Couple that with the notion that not too many people want to have a semi-truck stopping at their doorstep with the accompanying diesel fumes.

The logistical chain is not complete yet and it needs to reinvent itself and do so fast. EAV is here to fulfil that need.

Filling the Void

As you have learned the missing link in the logistics chain creates a void in the market. Considering the size of the global logistics industry, the void can be described simply as massive. EAV is filling this need with their innovative and eye-catching design, aiming to become the complete provider of sustainable urban transport. 

EAV has designed and engineered e-cargo bikes from a van down, rather than from a bike up! The electrical assistance enables the rider to effortlessly with a 150kg payload, without impending the ride characteristics. EAV has taken advantage of the torque and peak power that the Revonte ONE Drive System has at hand by designing an enclosed design; robust in looks and still light to ride.

The wide range covers all the models and needs one could think of. 

EAV Platform – Think of a lightweight pick-up truck that’s able to navigate in tightly built up urban areas as well as a factory floor. 

EAV Pickup – The perfect solution for transporting work equipment and other goods.

EAV 2Cubed – The best-selling model in the EAV range bridges the gap between a traditional cargo bike and a van. 

EAV RoRo – The modular 1.2m3-sized EuroPod container makes the RoRO a true asset for all types of industrial logistical needs.

HG EAV – What’s half-way between a cargo e-bike and tractor? Meet the HG EAV with its twin wheel trailer.

EAV Cool – Need to keep the cargo in temperature-controlled conditions? The EAV Cool has you covered.

EAV Range

The Man with a Vision

None of these ideas, and most importantly, the implementation does not happen by itself. Adam Barmby is the founder and the man behind EAV. His background as a designer, engineer and entrepreneur provided the ideal platform (pun intended) for the creation of such a disruptive company as EAV.

Adam Barmby

He has a passion for simple means of transport and wants to see a big cultural shift in daily urban mobility. His track record with his first company BAMD ltd progressed quickly from his friend’s garage to notable advanced composites manufacturer with a turnover of over £4.5m. Adam is set to do the same, but even on a bigger scale, with EAV. 

The logistic industry is looking for a solution for a big problem and EAV is set to solve it. We are especially excited to team up with Revonte since their drive system is the only one in the market which can meet the high demands of cargo e-bikes.”

There’s a highly experienced and competent team besides Adam. Take Nigel Gordon-Stewart for example, the executive chairman, who has over three decades of experience in the automotive industry.

In Closing

The logistics industry is looking for an answer for the last mile problem, and e-cargo bikes provide a solution that is not only practical, economical but has also green values with its zero-emission nature. 

In the next article, we will take a detailed look at the needs of the logistics industry and how e-cargo bikes are meeting them. 

2020 – A Year in Review

It can be said without any hesitation that the year 2020 was full of surprises, rapidly changing situations, stretched deadlines, and general disarray. We kept our head low, concentrated on the tasks at hand, and continued developing the Revonte ONE Drive System for the upcoming launch in 2021. 

Here’s a summary of what happened during 2020.

The Year of Revonte

A lot of things can take place within a year. This is especially true when developing a new and innovative product in a competitive environment. Steady progress and occasional challenges were accompanied with big breakthroughs and new partnerships. 

Read the following list to know the essentials of Revonte in 2020. 

03 March

During the first quarter of the year we announced our partnership with the innovative – even disruptive – company from the UK named EAV. Their forward-thinking concept of cargo e-bikes has set the pace for the whole industry. Cargo e-bikes solve the last-mile dilemma and EAV’s range covers every imaginable need and purpose. 

Also, a story about our Drive System run on Pinkbike. If you’re interested of knowing what’ inside the Revonte Drive Unit, this is the one to read.

05 May

Simple, minimalistic, even elegant – those were some of the design goals of the Revonte Controller. We purposefully decided to go screenless with the design which leaves the final decision to the user. After all, configurability is in our DNA and the Controller is in line with that. 

Instead of occupying more space from the usually crowded cockpit, we take the opposite approach. Two brake levers, and the Revonte Controller forms the complete interface between the bike and the rider. No separate trigger or shifter for the gears are needed. Less is more. 

08 August

One of the many strengths of the Revonte ONE Drive System is the simple, robust and clutter-free single-speed drivetrain. Besides the traditional and time-tested chain, the Revonte ONE Drive System enables the use of a belt drive. 

To answer the inquiries we built a prototype with the industry-leading Gates carbon belt.

09 September

An energy storage is needed to employ the features of the automatic and stepless features of the Revonte ONE Drive System. To make everything right from the start we decided to partner up with class-leading German battery manufacturer Akku Vision GmbH, and develop our own battery.

Meet Revonte AKKU 5 and AKKU 7. Both models share the latest Li-ion technology and physical dimensions to meet every need and price point in the market. A unique feature is the smart battery management system which makes it possible to connect up to four batteries with the combined capacity of over 2.8kWh!

10 October

Eurobike gets cancelled. First the premier event was postponed, and eventually cancelled. This was unfortunate since we had made big preparations for the upcoming show and were looking forward to it. 

Revonte GmbH – a German subsidiary! To meet the demands of the European market we established a German branch to the ever-growing needs of the European e-bike market. Mr. Uwe Daniel, a long-time member of our team, was appointed as the CEO of the new company.

Cargo e-bikes are picking up and big time! An interesting development took place in a short timespan; cargo e-bikes rose to the position of becoming almost an industry leader. Our partner EAV is in the forefront of this movement and providing solutions to the challenges faced in the logistic chain. It’s not a coincidence that the Revonte ONE Drive System is the drive system of choice for cargo e-bikes.

We are looking forward to the year 2021 and we believe we aren’t the only one.

12 December

The release of the long awaited Revonte test ride video saw its premiere in December. Besides some test ride material the video included a general update of the past year. 

See what’s up with the Revonte ONE Drive System by viewing the video. On that note, see you next year!

The Bicycle Drivetrain – How Would It Look like If It Were Simple?

“How would this look like if it were simple?” 

This is a basic question used in engineering which might spark much needed new approaches to the otherwise plateaued design process. When the question is applied to bicycle drivetrain, some interesting observations can be made, and difficult questions asked.

If It Was Simple?

When posing the question at hand to bicycle drivetrains, and especially on e-bikes, an answer including a protruding rear derailleur with a dozen or so chainrings hardly comes to the mind. This is further accentuated by the fact that there’s plenty of operating power available since the bike is already equipped with a battery of large storage capacity, such as the Revonte AKKU

Uniting the gears and the motor in one unit, and placing inside a housing protected from the elements make sense in every level. This is how an e-bike drivetrain should look like; simple on the outside while a lot of engineering has gone to make it so. 

This is what we have set out to do with the Revonte ONE Drive System and we are glad that the industry has taken note. Our first partners were especially fast to see the benefits our system has to offer. 

A Take from Lavelle

We established a partnership with Lavelle Bikes at the beginning of 2020. In this case, the collaboration is especially fitting since we share the same values and a strong will to make bicycles better. When it comes to drivetrains, and especially on e-bikes, we both feel that there’ is a lot that could be improved. 

Lavelle Bikes has a very clear stance on how an e-bike drivetrain should be built. “Gears should not be located on the rear wheel, and derailleur gears are a poor choice for any consumer bicycle,” states Paul Lavelle, the CEO of Lavelle Bikes.

He further adds. “We believe the best location for gears is at the bottom bracket, and that is why we are so delighted to team up with Revonte who is manufacturing a mid-drive motor and gear system all in one unit.” 

The Many Benefits

The advantages of a combined motor and gearbox built around the bottom bracket are clear and manyfold: 

  • Ease of installation and service. It is surprising how many bike owners can’t perform basic service operations because of the complexity of the rear derailleur and cassette. 
  • Elegant, and simple looks! A single-speed drivetrain consisting of a wide chain – or a belt – and one pair of sprockets is pleasing to the eye.
  • Robustness. A single-speed drivetrain is durable and care-free as opposed to derailleur-based solutions. The same applies to belt drive on which the Lavelle Bikes P2R uses. 
  • No parts that are easily broken. The Revonte ONE Drive System does not have any external parts that are prone to damage.
  • More mileage with lower costs. A single-speed chain or a belt drive will outperform derailleur-based drivetrains on durability and will give more mileage out of one set of components. On top of that, replacing the worn-out parts comes with a significantly lower price tag, especially if divided by the total mileage.

It is worth noting, that all of the listed benefits apply, no matter if it’s a regular commuter bike, a high-performance e-mtb, or a ground-breaking design as in the Lavelle Bikes P2R.

The Ride Experience

Besides the listed benefits above, one thing matters almost above all else – the ride experience. We have gone to great length in developing the hardware inside the Revonte ONE Drive Unit, but as much if not even more design work and engineering has gone into the control software. 

The resulting ride experience is something that is highly valued by our partners, and finally, the customers. “The Revonte system permits a fully automatic system – just pedal, that’s all there is to it!“, Paul Lavelle lists one of the major benefits of our drive system. 

The derailleur-based gears have hanged on for surprisingly long. The advent of e-bikes was the much-needed catalyst for the bike industry to move to the next level and we are doing just that with our partners. 

Ps. Interestingly enough, search for the simplest approach applies to all things in life, not just in engineering.