

The idea
Sometimes all you need is an insightful go-between, which is how Stefan Schlie brought together trail designer and course builder Diddie Schneider with Claus Fleicher, CEO of Bosch eBike systems. They had worked separately on flow for several years. Diddie Schneider focused on downhill courses that would provide fun for beginners and families as well as experienced mountain bikers.
Claus Fleischer and Stefan Schlie worked on the development of the powerful Performance CX power unit, designed specially for eMountain bikes, which enables mountain bikers of all calibres to experience uphill flow for themselves.
In autumn 2015, the three men met in the Geißkopf MTB Zone Bike Park in Germany, where they worked together on the idea of an uphill flow course. Their aim was to create an extra element that would enable active sports enthusiasts to experience uphill flow in a safe environment. They covered a lot of ground, exchanging ideas and started to draw up a concept. During periods of bad weather over the course of a week, they were able to ride the park's trails in the opposite direction, enabling them to pinpoint exactly what they liked about each section and which elements an uphill flow trail requires.
"Flow is an individual feeling of well-being."
Stefan Schlie

How the Uphill Flow trail came about

Concept

Planning: Sustainability

Planning: User groups

Special features

Trail Variants

Construction: Timber elements

Construction: Trail construction

Construction: Durability

Added Amenity

Integration of the Bike Park

Associated Amenities (Families)
Milestones

2015
Willingen Bike Festival 2015Claus Fleischer and Stefan Schlie talk to Diddie Schneider for the first time about the idea of an Uphill Flow trail. Autumn 2015
Meeting at the Geißkopf MTB Zone Bike Park. Together the three men ride the Flow Country Trail and other nearby trails in order to test how an uphill flow trail can work. Winter 2015/2016
The key data for the Uphill Flow Trail is defined. The target group, variants and elements are defined over the course of several meetings.

2016
January 2016Inspection of the site together with local forestry representative, Alexander Achatz. Established a corridor for construction in accordance with conservationist requirements and forest management principles. February 2016
Planning permission is granted for the Uphill Flow Trail. March 2016
Uphill Flow Trail constructions begins. June 2016
50% of the trail is complete. Claus Fleischer and Stefan Schlie ride this trail for the first time and like what they experience. Further variants and the signposting system are subsequently designed. October 2016
The main trail is completed just before the first snow of the year in the Bavarian Forest. The trail and the aggregate can now bed in over the winter.

2017
March 2017Additional variants and the finishing touches added after the last snow. April 2017
Signposts installed, wall rides prepared and final test rides taken place. The entries to the various sections were ridden one last time from the top to uncover any possible safety concerns. May 2017
Official opening of the Uphill Flow Trail.


The interviews

Interview: Claus Fleischer
1. What's the idea behind Uphill Flow?
The idea behind Uphill Flow is to extend the well-known term of "flow". "Flow" is defined as the triangle formed by your personal aspirations, your individual riding skills and the challenge of the trail. And when you stretch that triangle to the maximum and pass the point of being underchallenged without being overchallenged either, then you're in the flow. And this is the concept that we've now transferred to Uphill Flow. We want to show that riding an eMountain bike uphill is fun and that you can overcome your individual limitations in terms of riding technique. Your ambitions to ride better uphill are continuously fuelled. And that is supported perfectly by the technology, which means that, suddenly, you get into a flow uphill as well. That's why we coined the term Uphill Flow. It's the experience when riding uphill, that excitement.
2. You aptly say "the technology supports you perfectly". How much have you adapted the Performance Line CX drive to your idea of Uphill Flow in technology terms?
The idea for the Performance CX originated from the experiences and riding enjoyment that we were having with eMountain bikes.
Stefan Schlie and I started playing around with these in the woods about three years ago and we noticed that riding uphill with them was just so much more fun than before. But we also came up against the limitations of the systems available at the time. Stefan was really good at testing out the bikes, so we thought about what we really needed. Fundamentally, there were two aspects: Firstly, increasing the torque. We called this "maximum momentum". For us, it's important that the motor delivers enough power, i.e. torque, from low motor speeds when you're accelerating out of a bend, up to the high rotation speeds, when you're really riding fast but are also transferring the motor power to the ground. It's not the torque alone though, but the riding dynamics too, and the connected control technology. When you have optimal support in any situation, we call this "Trail Control". And all this led to the Performance CX.
3. Now, all this is being brought onto the trail. What's the idea behind the Uphill Flow Trail?
We envisaged the Uphill Flow Trail as an opportunity to apply this riding technique, or to provide an experience of it, in a bike park because you have much greater scope here for building tracks that cater to different levels of difficulty. Everyone's familiar with the idea of downhill Flow Country Trails. In the past, you rode downhill, then came the Free-Ride Tracks and afterwards, the Flow Country Trails. We now want to offer the same experience uphill. For us, the idea is to offer all the sportier eMountain bikers who want to improve their riding skills a chance to experience Uphill Flow in the bike parks as well. As an additional offering to the current options.
4. What target group is Uphill Flow aimed at? Who will it appeal to?
Essentially, we want to target the sportier eMountain bikers. Mountain bikers and eMountain bikers are generally touring cyclists who occasionally enjoy a more sporty ride. In order to create an offering here, we decided to go to the Bike Park here at the Geißkopf and build this track for eMountain bikers who want to give it a try. We're confident that the idea will prove successful and can be extended to other regions as well.
5. That's basically my next question. First and foremost, you're drive manufacturers. Why are you so strongly committed to trail etiquette in this segment when it comes to Uphill Flow? Where does this commitment come from?
With Part 1 of the Uphill Flow campaign in 2014, we wanted to show what can be done with an eBike. That you can have fun on the ride up and not feel any restrictions on the way down the trails. With Part 2 of the Uphill Flow campaign in 2015, we wanted to show that when you're on tour, riding in the Alps, what matters is riding technique and trail etiquette, which means that the same principle applies to both mountain bikers and eMountain bikers: mutual respect and tolerance. And with Part 3 of Uphill Flow, we wanted to extend the idea even further and put the focus firmly back onto riding skills. We wanted to communicate the fun and excitement that are possible in a playful way. For us as a drive manufacturer, this is really easy - we just really enjoy transforming our own little dream into reality.
6. What's your impression of the track so far?
Our impression of the track so far is very good. We rode some of the main stretches today. Diddie Schneider has implemented a really amazing concept here and you can already get a feel of the ideas that we devised together last year and during the winter. It really is great when you accelerate out of a bend on the hill and the drive actually provides the support in the way we imagined it could. When you ride the berms at the top and you can pedal through the turn and take the momentum into the next chicane. It's just awesome. It's exactly what we'd imagined.
7. Does using an eBike have an influence on your experience, on your sensation when you're cycling?
The eMountain bike really expands the mountain biking experience. You can make a good comparison. Based on our experience, we've worked out that on a normal mountain bike you need around four time units to ride up the hill for each time unit spent riding downhill. And normally, you ride those four time units on a gravel track, so if you're riding fast, it's impossible to hold a conversation. With the eMountain bike, you ride up for two time units and down for one, but the two time units up are fun too. I ride on the gravel paths and can still have a chat, or I ride up an Uphill Flow Trail and have an enjoyable time as well.
8. What do you think the future holds for eBiking? Will there be more tracks like the Uphill Flow Trail?
The future of mountain biking is that we'll see more eBikes. Why? Not only because it makes sense, it's fun too. The eBikers realise that, suddenly, they can have fun on the ride up and not only downhill. So, I could imagine that more and more people will take up eMountain biking, especially in highland areas and the Alps. And then, another point is that some regions are considering certain concepts involving trail parks with Flow Country Trails and extending these with Uphill Flow Trails.
9. An important topic is the speed of this trail. It's designed for 25 km/h and you've been running a strict anti-tuning campaign. What's that all about? What are the reasons for it and what measures are you using to implement it?
The bicycle manufacturers and system suppliers have joined forces in the bicycle industry association and have signed and published a voluntary agreement against unauthorised tuning. There's absolutely no place for tuning when it comes to eBikes and eMountain bikes. And, as we noticed today, if a trail is well built, you don't need to ride any faster than 25 km/h. That means that you don't even reach the top-speed limiter point, so in addition to tuning being impermissible, it just doesn't make sense.

Interview: Stefan Schlie
1. Stefan, what does Uphill Flow mean to you?
Flow is an individual feeling of well-being. Basically, it's a comfort zone. An imaginary window that ranges from when you stop being underchallenged to when you start to be overchallenged. It's different for each person. And when you're within this window, then you get that feeling of flow. Workflow, flow on the bike, skis... whatever.
2. So, what's Uphill Flow for you?
Flow is something that you mostly get during downhill-oriented sports, but now it's also possible to feel it uphill. Given that this comfort zone I was just talking about can mostly be enhanced by improving your riding skills, then this also applies, of course, to eMountain biking. During Uphill Flow, you also have the added extra of the support levels. This means that your own strength is increased by up to 300 percent, which at that moment removes the overexertion during uphill riding. You don't get overexerted as quickly as during normal uphill riding. On the contrary, it's easier. And, that way, you can extend the comfort zone.
3. What does your cooperation with Diddie Schneider mean for you? The implementation of this Uphill Flow Trail? What, in particular, is the idea behind it?
When you get into the flow, you're moving in a quiet space. Of course, there is some potential for conflict if you start thinking about what might be coming towards you, both for the people riding downhill as well as those riding up. So, deliberately building a specifically uphill trail with the aim of putting your own uphill riding skills into practice so you can stay precisely in that comfort zone is certainly ground-breaking. Because it really is a revolutionary concept for eMountain bikers to build an uphill trail. And what I also think is great is that this concept doesn't just involve a single trail, but it's divided into different routes so that everyone can find their own individual flow zone without being over or underchallenged.
4. What's your impression of the trail?
Well, I think Diddie's done a great job. It's not easy to build a flowy trail. A trail that's compatible for everyone. There are slight similarities with the Flow Country concepts in terms of making it accessible to the general public and ensure that everyone is able to ride up. The way the track is built, the bends, the spacing of the switchbacks, everything's been laid out really sensibly so that lots of people are going to have great fun and enjoy lots of flow.
5. In your view, what can the Performance CX from Bosch contribute to Uphill Flow?
The Performance Line CX is actually the paradigm of what a motor needs to deliver. There are features like maximum momentum, which means that 300 percent of your pedalling force is available immediately in terms of response, so you really have that organic riding sensation which you need to bring your own skills and the full motor power onto the trail, so that it feels like real cycling. But just with more power. And the Performance Line CX does this outstandingly.
6. Does using an eBike have an influence on your experience, on your sensation when you're cycling?
eBiking has completely changed life because you've really got an all-purpose two-wheeler at your disposal. It really expands your horizons. Your scope. You simply have more possibilities. You can work on your flow, intensity, coordination, you can just decide to go up somewhere with just a little effort to then have a great downhill ride. When riding downhill, you're not giving anything up with an eBike. Lots of people think that the heavier weight of the eBike would be a disadvantage when riding downhill, but that's not the case at all. So, really, I've got the complete package. I can ride with high intensity, I can ride uphill with low intensity, I can apply my skills uphill, I can ride uphill in a coordinated way, I can ride up and recover with my friends. The overall package that an eMountain bike delivers is incredibly diverse.
7. What do you think? What does the future hold for eBiking? What's your vision for the coming years?
I think that eMountain biking is going to become much more significant. I think that, in future, a lot of people are going to think very carefully about what kind of bikes they're going to buy, because the eMontain bike covers a very wide range of possibilities. I can train, I can have fun, I can regenerate. I can do anything, really.
I think that over the short or long term, a lot of people who try out an eBike will recognise the fun and the advantages that it brings. I think the landscape is going to change.

Interview: Diddie Schneider
1. What's the idea behind the Uphill Flow Trail?
The idea of the Uphill Flow Trail is to build a track that's specially designed for eBikes and caters to the advantages of the eBike. The Uphill Flow Trail therefore incorporates the relevant elements such as banked curves and small tables, i.e. uphill jumps. That's a really new aspect for one thing. Then there's the stretches that are a bit steeper and can't usually be ridden up on a normal bike. That's the basic idea, to develop a track that makes clear the differences between a normal bike and an eBike. Basically, you could compare it to the Flow Country Trail. The track has to have flow in any case. The objective is that you get to the top with a really wide grin on your face.
2. And who's the trail designed for?
Primarily, the track's designed for average riders who just want to feel the eBike experience. But the track also includes sections that are interesting for sporty riders, i.e. more technical parts. The regular rider, however, doesn't have to ride these stretches and can just ride up in a flow, like on the Flow Country Trail. Those who like it sporty can then take the relevant turn-offs and, on these lines that are a little more difficult and technical, they can have even greater fun.
3. How has the trail been integrated into the Bike Park? What possibilities does it offer for downhill riding?
If you're feeling really good when you get to the top of the track because you weren't overchallenged or underchallenged, but purely enjoyed yourself, then you can choose one of the downhill tracks. You arrive just where the Downhill Track, the Flow Country Trail, Freeride or Evil Eye start at the Bike Park here. You can pick whichever track suits your riding skills and then ride down again. And when you get to the bottom, it's with a grin, because then you can just ride back up again.
4. There are fears that this eBike trail will only promote the exclusion of eBikers, or is it just a form of channelling and direction?
I think this track's really important. There probably will be issues, if normal eBikers become interested in riding up trails and then want to start riding up the existing downhill trails. That could lead to conflicts. To prevent these, we've said that we're building a special track that's really only designed with eBikers in mind. They'll have a track that's tailored to their needs. They can ride up this and won't encounter regular bikers and vice-versa.
5. What about the focus on speed? Will you be using normal eBikes? Or S pedelecs? What's the position on this?
We just want normal eBikes here in our Bike Park because speeds up to 25 km/h are quite sufficient to have fun on the trail in our view. It is possible to ride faster, but you'll need some pretty powerful thighs. It just makes sense for safety if there's a speed limit of 25 km/h, so that's what we'll be implementing.