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Surely nowadays we as consumers can be informed easily, but the problem is that I personally believe -and it sounds objectively reasonable to me- that a helmet should be tried, so I don't buy them online and this makes things more difficult. At least in Italy helmets can be sold even if years...

"Insulator" is a relative word, since, beyond a certain voltage, basically everything becomes a conductor, even air if the voltage exceeds 3kV/mm, and then you get an arc (like it could happen in an inverter with too close cables, for example) or a lightning in the sky. The same concept holds...

In order to contribute to our mathematical theoretical dream :LOL:, I've investigated to find out the battery voltage for the 902: I've found it for the 4.3 kWh, 46 kW light weight battery, @5:06 in the video in Philip's post #1: 90V nominal. I've noticed that usually the cells used in electric...

Well, assuming that they use a permanent magnet AC motor like the Varg, the question IMO is whether its highest efficiency rpm range matches what the rider uses. As far as I've understood, neither a massively overpowered, nor a barely enough powered motor is ideal; the ideal one is overpowered...

Ok, I've ordered the Tusk press, on Ebay. The problem with RMATVMC for me is that the shipping cost was way too much. Just like they show here. I've also found out that the handles are supposed to always be over the top race regardless of the race that you are replacing; you just change the...

That's the point I think: this time the vehicle that uses the revolutionary battery exists, you can order it and the delivery is expected to happen some months from now.

Up to the moment I read @Matt's comments, I didn't even know that supercapacitors existed: I knew about capacitors and batteries and I knew that capacitors have a far higher power density while batteries have a way higher energy density. From what I've quickly read this evening (it's night here...

Pressing the race surely sounds like the proper way. However, the Motion Pro part no° 08-0669 doesn't have a compatible driver and other alternatives are expensive and rare, except maybe the Tusk. I think the Tusk press you are talking about is this. I've read the questions and the reviews on...

Thank you, as I suspected; I just wasn't sure. The problem that I see is that in the Varg the outer race doesn't seem to be flush with the edge of its bore, it looks like it goes a little below it. I think that the old race upside down would get stuck if it's the same outer diameter, or maybe...

Well, they get that power from a 33 kWh battey pack. I don't know wether the power is limited by the motor or by the battery, but if it's the battery, then the maximum power for a 10 kWh pack could be like 40 or 45 HP. However, the charging power is 200 kW, so hopefully the discharging power is...

Cool and 350 Wh/kg instead of 400 is probably simply due to the fact that this is the specification for the assembled pack including the case. Still, they don't show the power density. Even with liquid electrolytes there are tradeoffs: a cell can be more energy dense but less power dense...

At 89 hours of motocross and despite no obvious reasons for which this should have happened (slight preload as per the 12 Nm specification, no rust, etc.), I've noticed that the outer race of my lower steering stem bearing has some shallow wear. The worn spots can't be felt by rubbing my...

Those bikes are not available for test rides and only the founder has tested one, as far as we know. Therefore, IMO they should provide potential caustomers with all possible information: wheelbase, seat height, dyno chart, weight distribution, brake rotors diameters and so on. Personally, I...

Some people prefer smaller swappable batteries, but even in this case, this technology should make them better.

Ok, the price is very high, but as far as I've understood they are trying to improve World records of distance traveled on a single charge and so they have put a 33 kWh battery there. Probably a 7.2 kWh MX bike would still cost less than 12k € and weigh quite some kg less than 118. The only...

for 5k$ you get 13 kWh @400 wH/kg, though! Cheaper and better than with current liquid electrolyte cells that we all use in our dirtbikes. I think that if this is true, it's a revolution.

This bike absolutely deserves a thread on its own!!!!! From their site, they say that it costs 33k € -ouch but it's solid state so maybe they can get away with it- and weighs 235 kg. That rear wheel would deserve a thread on its own, too! Here is the website of the manufacturer of that battery...

:LOL: Jokes aside, Yes, the Varg app does have a function that limits the SoC so that when it reaches a certain value it won't go beyond that. However, the way I personally use it is that, when I want to charge the bike for storage, I set it to 50% and I still disconnect it some hours later and...

I've recently installed new OEM Ariete grips: I heated up the left grip with a heat gun and it slipped without much effort; I pulled it from the donut side and pushed it from the closed side. When it cooled down, it was stircking to the handlebar pretty well. On the throttle side, not only I'm...

I didn't know about this; it's also some years old already. As far as I've understood, on those KTMs the system won't let the rider wheeling forever on the balance point like Sur Ronster did in his video and the assited wheelies will last as long as there will be a revs increase, but on the...