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  1. J

    BMS with batteries in parallel

    Hello everyone, I am currently in the process of designing a 20s 10p battery for an electric bike. I have purchased all of the cells and the 20s BMS to go along with it. I am going to be making two packs in order to make handling easier. I am able to make each pack a 10s 10p pack and then wire...
  2. J

    Electric Dirtbike

    That was really helpful! Thank you for all of the advice. Currently I am happy with the rake and trail. I've found a few figures online that seem about right with what I want for the bike. I may be wrong but I also think my anti-squat values are adequate. Although not perfect, I feel they will...
  3. J

    Electric Dirtbike

    I am messing with a design to mount the battery. I would put poly bushings in these holes and run bolts through the frame and through holes in the battery spacers. This would keep the smaller vibrations down and help lessen the force on the batteries from impact. I am not even sure if this is...
  4. J

    Electric Dirtbike

    I have not assembled the battery pack yet but plan to have that in my hands by the end of the year if things go as planned. Do you have any recommendations? I am planning on using dialectic grease between the negative contacts and the aluminum plates. Then, using kapton tape, tape down the...
  5. J

    Electric Dirtbike

    If I'm correct, with my 5:1 reduction I should be able to generate roughly 95ft-lbs of torque to the rear wheel. With my large tire diameter I will be lucky to be putting 50ft-lbs to the ground but for a bike that weighs no more than 150lbs, that should be plenty for a good wheelie. By adjusting...
  6. J

    Electric Dirtbike

    Oh thats good to know! I saw a few out there but I couldn't seem to find one that was readily available. The wheels are already built but if things need to change that's good information. I'm not sure yet if just a regen brake will be enough in the rear but we'll find out.
  7. J

    Electric Dirtbike

    Hello everyone, I have been a member here for a few years now and have mostly just been researching and seeing what everyone is up to. After seeing this post https://endless-sphere.com/forums/viewtopic.php?f=28&t=88595 by Vertigo I was hooked and had to have something similar. After a year in...
  8. J

    Electric Adventure Bike

    Hey guys I started a go fund me page for the electric adventure bike I have been working on for the last few years. I have not had a chance to share a lot about the build and am currently working on a blog to share my experiences. I am very close to being able to build the bike but am still in...
  9. J

    150mm X 15mm Thru with 36h Drilling

    The Onyx hub is perfect! Thank you! I am building a custom bike from the ground up but I bought the swingarm from vector ebike to make things a little easier for me. After receiving the swingarm and taking measurements it looks like I need a 150mmx15mm hub. I thought it sounded a little weird at...
  10. J

    High Amperage BMS Reccomendation

    Sorry for the late replay, I haven't had access to a computer that would let me log in. The BMS I have access to is the link on the bottom. According to the company's very spotty customer service they said it would not support regen braking. Is there a way to test this without hurting the bms...
  11. J

    150mm X 15mm Thru with 36h Drilling

    Hey guys I'm looking for advice to try and solve my hub situation. I'm making a dirt bike style electric bike so I will not have a freewheel in the rear. I plan to have it be a direct drive system. After doing some research and seeing what others are doing I plan to use a front bike hub and...
  12. J

    High Amperage BMS Reccomendation

    I am currently working on an electric motorcycle project. The project consists of a 20s10p battery pack with a total voltage of 72 and a continuous discharge of 200A. The largest, high quality BMSs I could find for a 20s system were 150A. Looking a continuous discharge of 200A and a controller...
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