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  1. Karinshi

    General mountain biking as a cross training for motocross

    Yes, honestly, i don't feel it helps me improve beyond physical endurance, which isn't bad, but I don't see many advantages. Even though it's the same thing (a vehicle with two wheels and different weights), they're completely different in practice. Not even for enduro, because the balance is...
  2. Karinshi

    General mountain biking as a cross training for motocross

    My perspective on this is that cycling helps me with physical endurance and cardio, or at least it used to, because I now have a heart condition called extrasystoles or premature ventricular contractions (PVCs), and I can't get my heart rate too high. That's why I decided to buy an electric...
  3. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    i didn't request that in the end... the new bike comes with EX medium sus, its okey. And yes, I imagine it's normal for the new bike to also have a 2-year warranty in my opinion. The thing is, I can understand that if a bike is perfect, but it develops a problem after 7 months and needs to be...
  4. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    To summarize it to you, my original bike arrived on April 25, 2025, and the warranty started that day. It was produced in early March because it was a custom order, not a prefabricated model. The new bike was apparently manufactured on May 27, and the warranty also started on May 27, meaning it...
  5. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    My original one had VIN 16** and this one is 37** so it should have newer cells i guess... as you said, is curious that they still have bikes from May just siting there... maybe every X number of sells they manufacture X number of bikes that aren't exactly custom orders from customers, but...
  6. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    i think the bike is from May 27 wich is the start date for the warranty, to be honest im not happy to receive a bike that is 7 month old even though it has not been used... i dont trust the health of that battery And the warranty should change to the date I receive the bike, just like my...
  7. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    In less than 24 hours i got my new bike selected and ready to ship. I thought I'd get a higher VIN, around 8000 or so, but I got 37**... is this normal? I think the bike is several months old. I'm a little worried about the battery's condition, since it might have been sitting in the box for...
  8. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    at this moment i think i will ride more MX than Enduro... i like to jump more but im not a pro either. I have 20 years experience in mountain bike jumps (i was able to do some very big ones), downhill and BMX so i kknow i have possibilities to be good with a Motorcycle aswell but im just...
  9. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    Please help me with this... i think the medium enduro sus will be too soft for the jumps at my local track. Right now i cant jump the Big jumps but i can do the smaller ones, at some point i want to do the big ones aswell, im going to train In this video i attached below you can see my local...
  10. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    I didn't quite understand... do you mean that i should speak to Loar? i saw them on instagram... i dont know, i think Stark should do that job... I think the bikes in stock are also at the Stark factory itself right? or are they only distributed by dealers? I told stark earlier that i see one...
  11. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    Thank you so much, my friend. You have a kind heart I want to make it clear that, aside from all the trouble this has caused me, Stark has been incredibly helpful and professional throughout the entire process. A lot of time has passed between testing new parts to locate the error, but that's...
  12. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    I think i want to do more jumps (not huge jumps) than enduro and a MX suspension could be good for that, but i dont care too much. Heavier springs like you said should be okey and i can order them from the website. And yes, i already told them that i want the bike to arrive at my house not to...
  13. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    UPDATE: Soooo... new bike coming. Translation from Spanish: Support (Stark Future) December 4, 2025, 3:49 PM CET Today we had one last call with the dealer to try and diagnose the bike with the engineers. We can see the problem, but we don't know where it's coming from or what's causing...
  14. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    You are 100% right. The video call is with the dealer, not me. It's scheduled for three hours after this post. Stark is supposed to contact me with a solution; that's what they told me yesterday. I also want to mention that I've been in contact with an employee named Benjamin. He helped me...
  15. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    For sure there's got to be something but that can take several months... a lot? Just send parts to a dealer to have them installed? And even then, those parts don't fix anything? That seems like the bare minimum they should do for a bike that's had problems since day one. They can't just wash...
  16. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    Thanks for your kind words, I'm very discouraged. I don't know if there's a previous case of a complete bike replacement, but I suppose that's what they should do in my case. 7 months is unacceptable. If I don't get a solution by tomorrow, I'll return to the forum to ask for help and advice on...
  17. Karinshi

    Solved HELP Power jerking after Drivetrain replacement (GEN2)

    UPDATE: My bike still hasn't been fixed. My dealer responsible for the repair just called me and said he's ending his contract with Stark tomorrow. He doesn't want to work with them anymore. He says he's losing money. He claims he's replaced all the parts Stark mentioned (drivetrain, wiring...
  18. Karinshi

    Stark Battery Tech Thread

    Yep, you can see a Blueish color at the begining, that in a normal use will be the charging state but not in this case Also they are using the MX mapswitch, maybe for weight saving? :unsure::LOL:
  19. Karinshi

    Stark Battery Tech Thread

    New video, they talk about the battery swap for Red Bull Romaniacs
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