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  1. DonCox

    SwapMoto Tests the Stark at Cahuilla with a Plus size Rider

    Don Maeda asked Domer to test the Stark. Interesting!!!!
  2. DonCox

    Stark California registration possible with purchasing out of state but with an MCO ?

    There are 3 Starks ( Red ,White and Gray), in Peoria AZ at GO AZ Motorsports. Call Ryan there at 570 7890372
  3. DonCox

    EV Charge Station at the Track

    I'm sure it is not the first, and it is not perfect yet, but upon Frank Vests recommendations at Hollister Hill State Vehicular Recreation Area, they installed their first of, we hope many, power stations. There are 2 power boxes, and they provide only 120V, and have a way to lock your bike...
  4. DonCox

    General Insuring electric dirt bikes

    Safeco insures my 2006 YZ85 Electric Conversion here in Arizona. It is street legal as an electric conversion. Still a YZ85, but with Alternative Fuel Plate. It is very inexpensive add on to my Arctic Cat UTV insurance policy.
  5. DonCox

    Power station? Eco Flow or Anker SOLIX F3800

    They are offering the Anker Solix F3800 plus an expansion battery BP3800 for $3399 at Costco. https://costco.anker.com/collections/portable-power-stations/products/anker-solix-f3800-and-bp3800-expansion-battery
  6. DonCox

    AMA and Electric Motorcycles in AMA races

    Here is the press release. Stark Future Challenges MXGP Proposal for Segregated Electric Support Class Barcelona, 13th March. Following numerous questions, comments, and opinions, Stark Future would like to offer its take on the recent Press Conference held at VILLA LA ANGOSTURA...
  7. DonCox

    Flat Track - Stark Varg

    It is a QS138 70H V3 motor, the controller is going to be a Votol EM260S, but we will probably only run it at about 14KW or 200A. The white box represents the battery. It will be a 20S10P 21700 cell battery. We will keep you posted on the progress.
  8. DonCox

    Flat Track - Stark Varg

    Hi Andreas, my name is Don Cox. Philip and I got to ride on a half mile flat track with Kenny Roberts, Eddie Lawson , and others a few weeks ago. . They rented the track near here Lake Havasu Arizona. We had a lot of fun. Arnie (who is the owner of bike # 37 on the AMA Progressive Flat track...
  9. DonCox

    QS138 70H V3 Motor Improvements

    The QS138 70H V3 motor has been a strong and reliable motor for us DIY builders. They have just made some significant upgrades to that motor. Here is the information from the AliExpress website. It is hard to differentiate the new from the old. They list and explain all the improvements on the...
  10. DonCox

    AMA and Electric Motorcycles in AMA races

    There are 2 motos for the E-Open in the YouTube . At the 40 minute mark, and at the 4 hour and 10 minute mark
  11. DonCox

    Where Can Your Race On Your Stark

    The E-Open class is now in the Daytona Vintage and ATV Supercross just a couple of days ago. There were only 3 bikes in the E-Open race. Matt Burkeen , Derek Timm and I didn't get the third persons name. Matt got his first taste of riding an E-Motorcycle just a couple days before this race, If...
  12. DonCox

    AMA and Electric Motorcycles in AMA races

    Interesting video, I came across. It is Matt Burkeen, son of the AMA official mentioned at the beginning, test riding the Stark Varq. His dad, Mike Burkeen, is actually there watching him ride, and waving at his son in the car on the way out there. I think it might be good for Electric bikes...
  13. DonCox

    KTM65 Electric Conversion

    Since the last posts I did on this link, I have built almost 15 electric bikes. A lot of KX80,85,100's, a YZ85, and a bunch of full size KTM's, Honda's and Yamaha's. And a couple of those builds started other builders. They have each done more than 5 bikes each, it is an infectious hobby...
  14. DonCox

    Is this a good generator? A-iPower GXS7100iRD 7100W Dual Fuel Inverter

    A-iPower GXS7100iRD 7100W Dual Fuel Inverter Generator Costco has this on sale for $999 as sale price. I think even at $1299 is a good price. The sale isn't going to last very long.
  15. DonCox

    Electro and Co ETM Mini or V2

    I just saw this thread, and don't remember ever seeing it, but I'd like to put in my 2 cents. I have been using and working with Austin and the crew at Electroandcompany.com for quite a few years. All my experiences with them have been, good, honest and responsive. I have heard from others...
  16. DonCox

    2023 Honda CRF250R with QS138 70H V3 Motor and EM260S Controller

    Alessandro, Glad to help you. What year and model Honda's are you going to modify to electric. I have done this 2023 CRF and I am right now starting a 2005 CRF450R. As Bayodome mentioned Electro and Company is a great way to go. On this forum a guy just finished a Honda build of a 2006...
  17. DonCox

    2023 Honda CRF250R with QS138 70H V3 Motor and EM260S Controller

    50AH at 72V is about 3.6KW of stored power. On the smaller bikes (KX80,85, 100, YZ85, etc) it takes about 100W per mile on trail riding, so the 20S8P battery we put in the smaller bikes is 2.4KW and 100W per mile gives you about 25 miles. We have gotten that quite often. More hills , harder...
  18. DonCox

    2023 Honda CRF250R with QS138 70H V3 Motor and EM260S Controller

    I have 20S12P for 50AH. I actually have it split into 2 x 20S6P packs, so I can charge them faster at the track with 2 x 120V 15Amp chargers. It is pretty tight in the YZ frame. Here are some internal pictures of the battery. 10 x 6 times 4. Chi battery Systems sells a battery for Surrons...
  19. DonCox

    2023 Honda CRF250R with QS138 70H V3 Motor and EM260S Controller

    Yes they are they are about a 80-90A fuse. It is the same area as a 1mm diameter copper wire. It has been empirically tested for that rating. The main bus bars are .4mm x 8mm copper strips which carry about 400A, also tested empirically, equivalent to a 2mm diameter copper wire. We have...
  20. DonCox

    YZ-EMX Kits now Available

    Did you buy one of these? They run good. We are running the tune that Austin is putting in this model. It runs real well with the EM260S controller, I anticipate it running better with the Tru Zapper at 35KW. We are at 28KW now and that is good, almost too much for my skill level.
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