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  1. motomoto

    Storm Bee electric dirt bike

    I just think it is time to start a Storm Bee thread. It could be a hit. 5KLEG_FScro https://evnerds.com/electric-vehicles/e-motorcycle-news/storm-bee-electric-mx-motorcycle-is-sur-ron-milestone-product/
  2. motomoto

    Sur-ron Adaptto

    Just letting everyone know that I have a new Max-E controller with 10 4s 16.0 multistars that I am going to install on my Sur-ron bike. Some friends were raving about ASI controllers but when I called the company they didn't have any 4000w or 8000w units. It finally dawned on me that the...
  3. motomoto

    Looks like an LMX Copy

    There is a good image 16 seconds in. Looks like an LMX to me. JTHKrsQCPRw
  4. motomoto

    Awesome Build

    Just thought some people would like these 3 videos showing a high power build https://www.youtube.com/watch?v=TyHj3yViHGY&index=3&list=RDInela1cI30k https://www.youtube.com/watch?v=Inela1cI30k&t=272s https://www.youtube.com/watch?v=wkO2QBFWpPM
  5. motomoto

    Racing and efficiency

    I went to a national motocross recently (Hangtown) and I noticed that every rider is revving there engines getting every ounce of acceleration out of their bikes. I mean, they are in the area of the power band that makes the most horsepower. Which means they are in the proper gear for the speed...
  6. motomoto

    Stupid Me

    I have tried to figure out the basics of how a motor works for the last 3 years. Actually, the volts, amps, and number of turns resulting in motor Kv and torque. A couple of weeks ago I watched a video by the kid who designed the Zero motor and he said that the only thing that causes torque is...
  7. motomoto

    Tangent bike vs Cyclone bike

    Just curious how these two bikes would stand up to each other. The Tangent setup is more high dollar but I think the Cyclone would be faster. The Tangent has a 3210 Astroflight with Castle Creations HV80 set at 60 amps with a 52 volt battery...
  8. motomoto

    So 1 volt at 1000 amps = 1000 volts at 1 amp...really?

    It seems that volts and amps are interchangeable? The math says they are as far as calculating power goes. When I look at the Astroflight chart it says all the winds make the exact same horsepower at the same RPM. With R/C racing or slot cars the lower turn motors were always faster and that...
  9. motomoto

    Sea Otter Classic Offroad E-bike Race

    I checked this out the other day but decided it would be bogus because it was limited to 350 watts (checked at race end) and only for pedal assist to 20 MPH. Then I saw that is was sponsored by Bosch. Figures. http://www.seaotterclassic.com/index.cfm/competitive_events_eMTB.htm But then I got...
  10. motomoto

    Used Brammo motors

    I just bought 2 of these motors. http://www.ebay.com/itm/EV-PERM-Electric-AC-PMS-120-Motor-9-3-HP-Used-Brammo-Enertia-Elec-Motorcycle-/201311978070?hash=item2edf210256&vxp=mtr Might be good for a commuter bike.
  11. motomoto

    Motorbike Motor

    I am building a motor based on this article; http://www.mojaladja.com/upload/elmotor/Analysis%20of%20the%20Yokeless%20and%20Segmented%20Armature%20machine.pdf Not long ago I was set on a Emrax 207 with IP64 protection rating for my prototype supercross bike. I ordered a motor (I think) from...
  12. motomoto

    Liquid Nitrogen

    I have been researching Liquid Nitrogen and how it sucks heat when evaporated. I want to use it to cool motors and power transistors in controllers. It might eliminate controllers blowing and motors could run at 10 times their normal power rating. Youtube is strewn with computer dudes chilling...
  13. motomoto

    Super Capacitor Video

    Just thought others would find this interesting. http://gearpatrol.com/2014/01/22/super-supercapacitor/
  14. motomoto

    Battery lead length

    I know you are supposed to keep the battery leads to the ESC as short as possible. What I was wondering is that maybe only one lead needs to be short because of the direction of the flow of electrons. Does anyone understand what is really going on here?
  15. motomoto

    Astroflight new products

    I just wanted to let you guys know that Astroflight has a new controller out and the big motor that Matt Shumaker kept promising us. http://www.astroflight.com/new-products.html
  16. motomoto

    Inrunner/Outrunner combo

    I just wanted to run an idea past some of you who understand some of this motor stuff. I am totally stupid about motors, so bear with me. When I watch simple pictorials of how a BLDC motor works, I wonder why they don't use both ends of the coil/electromagnet to attract an inrunner and an...
  17. motomoto

    My dream bike

    I did a thread a while back entitled "Another DH Project" which resulted in this build. This project was to get my "feet wet" in electric bikes. I learned a ton of stuff and think my next step is to build a bike from the ground up. Lately I have been obsessed with this bike that was put on...
  18. motomoto

    Astroflight Overheating Fix

    I just thought I would put this out there to see if anyone is interested. I overheat my 3210 10 turn and 6 turn in about 10 minutes of full throttle running. Here is a picture of my new 3210 6 turn after I let someone ride my bike for 10 minutes. His hair was blown straight back which was...
  19. motomoto

    Another DH Project

    This is what I started with. This is what I have so far. It's got a 10 turn 3210 with 44v 5 ah. At 6,000 rpm it will turn the crank at 90 rpm and use all the gears in the back. A 14 tooth freewheel drives a 42 tooth at the crank. A 32 tooth to the back. The crank sprockets are both on a...
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