Video: Revonte at Eurobike 2021

Head to your YouTube channel to see what happened at the Eurobike 2021 edition!

Our technical sales manager Leon outlines the Revonte ONE Drive System and how it’s integrated into bikes with very different applications.

P2 from our partner Lavelle bikes is an e-bike designed for commuting with a futuristic design and state-of-the-art carbon chassis.

The EAV 2Cubed on the other hand is the class-leading vehicle in the cargo e-bike segment. The Revonte ONE Drive System is not only the smartest drive system out there but also the most versatile one.

Watch to see what was on display on our booth and subscribe to your YouTube channel to stay up to date on new video releases!

Eurobike Wrap-up

To summarize the Eurobike 2021 coverage, some of the notable stories and videos are listed below. Click the links to see what the most notable media outlets have to say about the Revonte ONE Drive System!

EMBN.com – The Future Of E-Bike Motors? New EMTB Motor Tech | Eurobike 2021 Day 3

Pedelec-elektro-fahrrad.de – First Ride: Revonte ONE auf der Eurobike 2021

Downtown-ebike.com – News Eurobike 2021 – The 13 ebike highlights in the urban mobility sector

What Makes a Good E-bike Drive System – And How We’ve Met the Demanding List of Criteria

Even though the e-bike industry can be considered quite young, a considerable amount of maturation has taken place in just a couple of years. Gone are the days when a bike manufacturer can bolt a motor around the bottom bracket, place a battery on top of the pannier rack and call it an e-bike.  Besides more polished looks the assistance behaviour has improved by leaps and bounds – and the Revonte ONE Drive System is going to take it to the next level. 

Read further to learn more.

Ride Experience

When it comes to evaluating drive system performance, assistance behaviour rules the game. No matter how nice looking, light or easy to use the system is, it does not matter if the ride experience resembles that of a cheap scooter that gas water mixed in the gas tank. 

We’ve taken great care in developing the assistance behaviour of the Revonte ONE Drive System to the extent that it feels as if the bike is thinking already one step ahead. How is this accomplished you might ask? By refining the software with the aid of continuous and prolonged testing and by using high-quality sensors to detect even the smallest actions performed by the rider. 

A close second to the assistance behaviour is the ease of use. Conveniently the Revonte ONE Drive System scores the very top on this department, thanks to its automatic & stepless transmission. Just pedal – the bike will take care of the rest! 

Configurability – on more than one level 

It is already commonplace that a drive system has some level of inbuilt configurability by offering the choice between different assistance modes and possibly even more detailed settings. With the Revonte ONE Drive System, we’ve taken the configurability aspect to the next level. 

First, the bike manufacturer can configure the drive system according to their needs, whether it’s a commuter bike or a heavy-duty cargo e-bike. After the initial specs the end-user – meaning the rider – can configure the drive system according to their wishes or needs via our dedicated app. 

Inbuilt Modularity

What makes the Revonte ONE Drive System truly unique is that a single drive unit can be used in all types of bikes from a high-performance e-mtb to a commuter designed year-round daily use. From a bike manufacturer’s perspective, this is a very welcomed feature since it lessens the needed design considerations, product variants and stock overhead. 

And that’s not all. The Revonte AKKU is the smartest e-bike battery out there for a good reason. Both AKKU 5 and AKKU 7 share the same form factor, i.e., they have the same physical dimensions, hence making them interchangeable. This enables the bike manufacturer, or the rider, to spec his or her bike with just the right amount of energy storage capacity. 

The various inbuilt modular features make the Revonte ONE Drive System the ultimate choice both from bike manufacturers, but also from rider’s perspective.

Reliability

When it comes to power transmission, the century-old chain is still looking for a worthy rival. With the Revonte ONE Drive System, one can use a wide single-speed chain which is the most robust and durable type there is. Add to that the fact that the ingenious design of the Revonte ONE Drive Unit makes damage-prone derailleur obsolete, the reliability factor gets multiplied. 

As a nice bonus replacing the whole drivetrain costs only a fraction of that compared to a set consisting of a complex cassette, multi-speed chain and compatible chainring. 

Up to Date

Nobody likes to ride an old bike, especially if a newer or better model is available. There is no way to stop the ongoing technological development – which is only a good thing – but we’ve done everything in our power to keep Revonte ONE Drive System up to date and performing at its best for as long as possible.

How can this be done once the bike has left the factory floor then? By software updates which can be made swiftly and effortlessly, thanks to the inbuilt 4G connection which is a default feature in the Revonte ONE Drive System. 

In Closing

An e-bike drive system has to tick a lot of boxes to be a top performer in all areas. Revonte ONE Drive System does this with flying colours and goes even beyond that. The automatic & stepless transmission and the simple construction of the drivetrain itself take the e-bike ride experience and ease of use to an unprecedented level.

The one and truly smart drive system out there – Revonte ONE.

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!

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.