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  1. Philip

    BREAKING NEWS: Amprius Creates a 500Wh/kg Battery

  2. Philip

    Tesla Powerwall

    UPDATE 2023-03-13: Apparently, Tesla Powerwall is now available for purchase without having to buy solar installation with it. $9,200 each. Additional units are just $8K each. And they already have a 5 kW 110/220V split phase inverter in it! There is also a 30% Federal tax credit for it, so...
  3. Philip

    Alta MX Cone Valve / Trax Suspension Swap

    I think they are still there. You are welcome! https://slavensracing.com/shop/shock-springs-straight-rate-linkage-ktm-125-450/
  4. Philip

    Alta MX Cone Valve / Trax Suspension Swap

    6.3 kg = 62 N. The conversion factor is 9.81. 6.6 kg = 65 N. You need a 65-260 spring with the WP internal diameters. I dug up my email records and this is what I bought from Slavens Racing (back in 2018, when they had these springs): Product Quantity Price Fork Springs WP48mm 44mm x...
  5. Philip

    crf450r 40kw with watercooled battery pack

    Impressive machining and fabrication. I like it! The suspension choice is strange though. Front AER48 air fork but the rear shock is from an MX/EX. People usually try to get rid of the WP suspension components, but you bought them.
  6. Philip

    crf450r 40kw with watercooled battery pack

    I see a nice place for a couple of cold beers where the gas tank was.
  7. Philip

    Lizcat - Swiss company offer full YZF KXF RMZ & CRF Plug & play conversions

    The specs are similar to all the DIY project bikes on this forum. I am thinking 15-20 minute motos should be okay. With 38 hp it is like the Alta MX/MXR in Mode 2 or 3.
  8. Philip

    Graft EV EO.12

    @Azizi -- Looks like a lot of people will want to have a real motorcycle tire in the rear. If you allow people to specify the rear tire size at ordering, very few will choose 21". Will an 18" rear tire fit there width-wise to clear the swing arm and the chain?
  9. Philip

    Graft EV EO.12

    The company's owner is my good buddy. He has been producing EV powertrains for various commercial vehicles for a few years already, and for the last two years this bike, a side-by-side, and a quad have been his projects. The motorcycle, the quad, and the side-by-side use the same swappable...
  10. Philip

    Graft EV EO.12

    Ha! I think I will be reporting about this one pretty soon!
  11. Philip

    video title: World's First Harescramble Win on Electric Dirt Bike

    Which "extra weight" are you talking about? LOL! This is almost the lightest full-size bike around! Even if the battery were increased to 5.8 kWh, this bike would still be 30 lbs lighter than the Alta. How can this be?!! Where are those extra 30 lbs of fat on the Alta that we didn't know about?
  12. Philip

    Newbie need advice on a generator

    @Rashid510 @Judaslefourbe
  13. Philip

    video title: World's First Harescramble Win on Electric Dirt Bike

    Oh wow! He won the race by 5 minutes! Yamaha Corporation received more credit than it deserved, LOL!
  14. Philip

    Newbie need advice on a generator

    If the charger is the same for the Varg and the Alta, and all that I will need is an adapter, I can then think of four reasons why I would want to use the same charger to charge both bikes: 1) When traveling with two bikes, it is easier to haul around 2 bikes and only 1 charger and a small...
  15. Philip

    Alta MX Cone Valve / Trax Suspension Swap

    For your weight and riding, I wouldn't deviate from the rates that I have in my MX suspension thread by more than 1 - 2%. More than that, and the bike will be too soft/stiff/out of balance. I prefer the front ends that are slightly stiffer than the rear compared to the balance that most stock...
  16. Philip

    Alta MX Cone Valve / Trax Suspension Swap

    Do not forget to use proper fork spring rates either to keep your bike balanced. Altas have heavy front ends, so the front spring should be pretty stiff.
  17. Philip

    Alta MX Cone Valve / Trax Suspension Swap

    I weigh almost the same as you. But our bikes weigh exactly the same. You need to go stiffer. Dampers are dampers, and springs are springs. Both have their functions. You can partially compensate for the inadequacies of one by adjusting the other, but you should not. Traxx is just a damper, it...
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