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  1. Theo

    Help Needed steering bearings replacement

    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...
  2. Theo

    Stark Battery Tech Thread

    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.
  3. Theo

    Stark Battery Tech Thread

    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...
  4. Theo

    Help Needed steering bearings replacement

    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...
  5. Theo

    Help Needed steering bearings replacement

    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...
  6. Theo

    Stark Battery Tech Thread

    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...
  7. Theo

    Stark Battery Tech Thread

    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...
  8. Theo

    Help Needed steering bearings replacement

    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...
  9. Theo

    JARV-E (enduro)

    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...
  10. Theo

    Stark Battery Tech Thread

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

    Stark Battery Tech Thread

    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...
  12. Theo

    Stark Battery Tech Thread

    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.
  13. Theo

    Stark Battery Tech Thread

    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...
  14. Theo

    Thinking electric... again... garage full of parts still

    :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...
  15. Theo

    Any recommended Lock on grips for the Varg?

    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...
  16. Theo

    General electronic wheelie assist

    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...
  17. Theo

    General electronic wheelie assist

    Like already discussed offtopic in other threads, some people including me would like to have wheelie assitance. While I don't have problems controling the bike as the front wheel detaches from the ground under accelerations or coming out of crests (power wheelies were usual when I used my...
  18. Theo

    Other Bikes about helmets standards, lifespans and how they are sold

    Thank you for this, I had no idea about the existence of this FRHPhe-02 - 2023 standard! I'm also surprised that the AI I consulted about MX helmets didn't mention it. Following that link, I see that so far only expensive helmets are certified. I don't race but I've read our national Italian...
  19. Theo

    JARV-E (enduro)

    Hey mike, if I recall correctly you used to have a Varg but then sold it because it was too heavy. So the Jarv-E could be the solution.
  20. Theo

    Other Bikes about helmets standards, lifespans and how they are sold

    Customer support has told me that: 1) there is no expiry date for helmets. This is inconsistent with what they write on their website, which is what other manufacturers suggest: to replace it every 5 years. To make a comparison, here is what Arai, one of the most reputable motorcycle helmets...
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