Computerized 4 kW electric bike with recuperation - from our custom garage in Europe

Discussion in 'Electric Bicycles' started by lazylightning@mail.r, Oct 15, 2013.

  1. lazylightning@mail.r

    lazylightning@mail.r Active Member

    We are looking for buyers in Europe, of our computerized 4 kW electric bicycle -with recuperation when braking. Made in our custom garage in Moscow. We limited the top speed to about 52 mph due to road conditions here, however top speed could be much much higher. It accelerates from 0 - 50 mph in only 6 seconds! You have to hold on tight! We make custom frames from aluminum and steel in our Rasta-Bike Custom Garage facility. This frame is aluminum, however we can make any frame from aluminum using your designs or sketches that you wish.


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  2. zippinaround

    zippinaround Active Member

    wow 0-50 in 6 seconds! what kind of range out of the batteries? looks sweet!
     
  3. lazylightning@mail.r

    lazylightning@mail.r Active Member

    50 km on one charge or 65 km if you help with the pedals sometimes. 200 little batteries putting out about 50 volts. It weighs about 40 kg, it's kind of long, but it is a street bike after all.
     
  4. zippinaround

    zippinaround Active Member

    thats pretty good! how much is one?
     
  5. lazylightning@mail.r

    lazylightning@mail.r Active Member

    They are asking around $10,000 for it.Transport to Europe would cost a little more. We've been getting alot of experince collected in this and it's possible that we can make them for about 30% less money in the future. Custom aluminum frames is a good thing though. We also have an affiliate shop in Moscow, Triton bikes. They make bikes out of aerospace titanium. So we can bend up a frame for you with their titanium and then they can weld it up right.
     
  6. zippinaround

    zippinaround Active Member

    holy kazoo! 10k thats insane! good luck selling them!
     
  7. lazylightning@mail.r

    lazylightning@mail.r Active Member

    They're not so hard to make yourself. Maybe you will spend a few thousand on the motor, high quality lithium ion batteries and computerization. But it's easy to put it all on your bike. Just choose a good strong mountain bike with full suspension =-)
     
  8. max350

    max350 Member

  9. LR Jerry

    LR Jerry Well-Known Member

    LazyLightning tell me what you think about this idea. Have two sets of batteries and a generator front hub. When the "A" set of batteries gets so low the "B" set takes over. Then the front hub generator can be charging the "A" set while the "B" set is being used. Switching between "A" and "B" batteries could be done either manually or electronically. Which ever one would be easier for you to build. You could still use the regen system on the in use set of batteries. Such a bike may be able to go as much as 150 km (93 miles) or more.

    50 km is around 31 miles. At 50 mph you could only ride for 37 minutes. Is it safe to assume the 50 km distance isn't at full throttle? If that's the case 50 mph will use the batteries up even faster.
     
    Last edited: Dec 5, 2013
  10. lazylightning@mail.r

    lazylightning@mail.r Active Member

    We're using an electric motor that has a built in generator. When you hit the brakes, it cuts on the the generation of electricy. It's called recuperation. It has a rather large battery block as well. 200 batteries of the best newest Li-ion technology.
    I have seen a setup with a generaotr hub and a motor hub seperately. Both the generator and motor hub are rather special and break some previously accepted norms for allowable energy use and generation. The motor is much more efficient than it is supposed to be. It's only a prototype that a guy over here made. Not available to the market as far as I know. Even though there was an American businessman here a few years ago trying to help him get it to market. This guy: http://www.youtube.com/watch?v=2drRFmMqzxQ
     
  11. lazylightning@mail.r

    lazylightning@mail.r Active Member

    Ours is more powereful and of better quality than the stealth bike, plus it's a custom made aluminum cruiser frame. Like I said, it's a prototype and a bit more expensive. We can make the same ones for about $7000 or $8000 now. Moscow is perhaps the most expensive city in the world and custom made aluminum frames are not cheap here....

    By the way, the top speed(88 km/h) is limited by computer and if you have a good enough road, then you can try to really risk your like with very high speeds. It's a road bike and beefed up for higher speeds. You might be able to do like 170 or so before something goes wrong. Just a flat at that speed would be disastrous!
     
  12. LR Jerry

    LR Jerry Well-Known Member

    Let me ask you about this then. What do you think about a 1500 watt motor operating through a shift kit and the gears shifting automatically on the rear wheel? This way the motor is always in its most efficient gear ratio. By reducing stress on the motor less power will be pulled from the batteries.

    Here is what I'm talking about. Now granted my bike uses a gas engine and is mounted on a rear rack. Still you could mount an electric motor mid frame. There's a few different kinds of auto shifting systems which could be used as well.

    https://www.youtube.com/watch?v=pGDGIIdn--s&feature=youtube_gdata_player

    Think about an electric bike which shifts gears automatically and uses a hub generator to charge secondary batteries. Such a bike might go beyond 200 km. (124 miles)
     
    Last edited: Dec 6, 2013
  13. lazylightning@mail.r

    lazylightning@mail.r Active Member

    Sounds like a good idea. By examining closely a video interview with that fellow that makes super torque low amp motors, as it turns out, he and other scientists he works with have discovered that a spinning permanent magnet has about half of the magnetic pull/power of a stationary magnet. This is a really major breakthrough of a discovery......
     
  14. max350

    max350 Member

    It is unlikely to be accepted as an electric bicycle in any European country! . Are you going to register it as a motorcycle? Or is it just a fun toy
     
  15. lazylightning@mail.r

    lazylightning@mail.r Active Member

    Russia has no such restrictions on power levels in electric bicycles or bicycle engines. Only a 50cc restriction on any machine that now requires any kind of drivers liscence (new law this year. ), but no vehicle registration required. Before the new law this year, you could find lots of 9 year old kids on the highway driving scooters with no liscence and there was no way for cops to do anything. Still yet, even now, most people drive unregistered scooters with like 150cc's and more and will Russian cops do nothing about it and will not as long as the driver has at least some kind of drivers liscence. As far as electric goes, well ha ha ha! Who is going to check how powerful electric bicycle is. It has pedals after all. Electric bicycles are not even considered as something that needs to be regulated in any way. All cops do here is give us the thumbs up and maybe ask where they can get one. I know there are tons of motohooligans in Germany, France, Italy. Geeze any European country, you name it! Doing wheelies down the main street with no tags and street tires on motocross bikes. Whole packs of riders doing wheelies. Who is going to care about how many kW of power an electric bicycle has? And why should the government even regulate it? Rules and regulations that control every aspect of biking are just totalitarian! To he ll with rules and regulations. Maybe in Scandinavia, or maybe even in overly law abiding Germany. But Europe still has hope to get away from all those rules and regulations. Freedom forever! http://www.youtube.com/watch?v=n6dZ6v5v7N4
     
  16. max350

    max350 Member

    So your answer is, therefore, "is it just a fun toy" You can certainly ignore whatever laws are, but Russia is not an EU country!
     
  17. lazylightning@mail.r

    lazylightning@mail.r Active Member

    Yes, but even if I lived in Germany or the Netherlands or whatever, I could still produce whatever kind of bike and sell it. The question is, who will buy it there if it is illegal to drive. Actually I personally know some serious lawbreakers there and I'm very glad for them. Geeze, a motorcycle is hard to catch, but can you imagine how they're going to catch a bicycle that can go anywhere. And if it's a quiet electric bike they will loose track of it quicly in the forest. As long as you dont cause or have any accidents with it.
    From the other side, why not register it as a motorcycle? Then you can drive on the streets as a motorbike and creep along sidewalks around traffic jams like a bicycle. Nobody will understand youre using the electric motor to drive in parks unless you go really fast across the grass and down the trails.
     
  18. max350

    max350 Member

    Maybe this is the target group :)......................
     

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  19. lazylightning@mail.r

    lazylightning@mail.r Active Member

    I doubt so) The bike is a relatively small bicycle, like other choppers and cruisers. Here's some photos from our collective of artists and their bikes and other events: http://photo.rastabike.com

    Our main page: http://rastabike.com
     
  20. lazylightning@mail.r

    lazylightning@mail.r Active Member

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