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The original claim was: A Stromer has all aboard to calculate the riders power. This is - if it comes to e E-Bike with hub drive - wrong. The lack is, that you assume with changing RPM the riders input power also changes. You're assuming this because of the formula. The formula is correct, but...

I fully agree with this (the formula shows the dependencies of NM and W). We have: 300 RPM = 5 rotations per second 8 NM = given value 6.2832 = 2 * pi 0.95 = efficency of the drivetrain 5 * 8 * 6.2832 / 0.95 = approx 265W riders input (this is a high value for an ordinary rider, but the...

The name "torque" in the setting for (2) is a bad choice- as torque and power are bound to each other and cannot be separately changed. Your experience showed the weakness of the sensor setting concept. Its value is an overall value, so as you said, just for climbing the hill, you need the 100%...

I fully agree with this. I show you two examples of TMM voltage measurements. On both, the Stromer stays still, brake is pulled and one feet is on the pedal to create a value deviates from zero load. I see a 90kg rider who is out of the saddle and with his full weight is on the crank (25cm...

I don't want to spoil anyone's fun, so just a hint: Have a closer look on the display; maybe first on acceleration, then on braking...

Who claimed this? Please show me, how you make the calculation with the known values: Stromer Motor 300 RPM (approx. 40 km/h) Stromer TMM (torque sensor) value 1.5V Feel free to use an arbitrary value (NM) for the TMM. I'm only curious about the calculation.

From my point of view, the RPM (=speed) are the sum of the riders and the motors power. How did you overcome this?

The real regenerative braking works only, if the battery is not fully charged and has over 0ºC inner temperature. There are two ways to use is: left or right brake lever (with different regen strength!) or the driving mode, where the regen strength is set in different steps. There is als a...

You have the speed, which is the result of the riders and motors energy You need to have the motors energy consumption You need to have the motors efficiency at the given speed You have the riders force, translated by the drivetrain You need to have the drivetrain's efficiency at the given gear...

What I've done shown in the video above is also easy with an ST2. To be fast is not only what you read on the display (like I did on the ST5), it's also acceleration, speed in the corners and the capability to stop, if needed. Competing with the mid drives is always fun, regardless of what...

What I like most is hunting down mid drives on my daily commute with my 11 years old Stromer: If you watch on a tiny device, you'll not see him at the beginning. He is far ahead of my. He is sporty and rides with full engagement. It takes a few corners until I catch him up. He has perfect...

Explaining the advantage of a gearless hub drive over a mid drive if it comes to commuter bike is like Eulen nach Athen tragen. Thanks @fooferdoggie for your statement. For the rides, this is the key to feel comfortable on a fast commuter bike. You can ride at Stromer speed with the cadence you...

The motor of a Stromer does not contain any electronic - except the Hall sensors. I assume, there are three of them in a 120º angle. The "speed" is something like a side product of these sensors.

I call this the "Ferrari-discussion" You'll find it in the comment section of newspapers as well as in forums. People debating about the the performance, the tire consumption, the limit range in corners and more of a high end sports car. But non of theses experts owns a Ferrari or has ever...

You're thinking about a frequency analysis which detects the two dead centers? AFAIK, the software does the opposite: Smoothing this line to avoid a pulsing motor.

Yes, please do so, I'm curious.

You've read the entire thread? So, how many water would it take to freeze down a Stromer motor? I don't live in the US, having only experience with the Swiss winters. I've never taking a ride below -15ºC because it was never colder than this in my area. The temperature in my bike shelter box...

Thanks for reporting this. The remaining question is: How can a cable be broken inside a plug from one moment to the other? Do you consider sabotage by a jealous neighbor with a limp mid drive? Or might it be a stupid prank from the children around?

Yes, this is true. Before we continue, have a closer look on the RL lever at my Stromer. You easily recognize the release button in the center of the picture. This button is easy to trigger. On the left you see, with some reflecting sunshine, the lock button. This button damands more action to...

Imagine this was the case - how much water would it take? It's a rotating part, why should water flow into the motor? When you use a high pressure cleaner, you will damage a lot at the Stromer, but still with a powerful Kärcher, I don't see a way to press water into the motor. But these are only...