Advertise on Bikeforums.net



User Tag List

Results 1 to 5 of 5
  1. #1
    California dreaming... Zephyr Boy's Avatar
    Join Date
    Apr 2008
    My Bikes
    a cheapie-GreenLine-BC-706 Men Shimano Tourney 7-Speed (Flat Black) Beach Cruiser-no stickers
    Posts
    56
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    E-Motorcycles (Future Designs)

    E-bike's big brother...



    7-speed Beach Cruiser, 40psi balloon tires
    BL-36 (brushless front hub-4/2008) Wilderness Energy. 600 watt (750 max), 50amp controller (stock)
    Cycle Analyst Stand Alone V2.11
    Topeak MTX Trunk Bag DXP
    ping LiFePO4 48v15ah V2.5 (standard size from ping's website-300x105x150mm) 2AH charger
    off/on toggle switch from Radio Shack (12V/50A spst)
    inline fuse (12 AWG, 30 AMP fuse).
    [SIGPIC][/SIGPIC]

  2. #2
    Senior Member
    Join Date
    Nov 2007
    Posts
    117
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Now, just imagine this concept extended somewhat with a retractable canopy lined with solar cells.

    With all the new research into battery chemistries with vastly improved energy density * and solar cells, we'll see some really fantastic machines within 10 years, i.e. by 2020.

    * Certainly NOT LiPo4
    Last edited by tpreitzel; 02-26-10 at 02:22 AM.

  3. #3
    Senior Member
    Join Date
    Oct 2009
    Posts
    178
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If you do out the math though, E-motorcycles are doomed to failure, except in the midwest and Florida, with the current battery chemistries. If you even assume a highly efficient motor running at peak efficiency, and LiPO batteries, a bike with any range beyond to the local grocery store will not have the power to climb hills at current speed limits. A big leap forward in electrical energy storage is needed (as well as electrical infrastructure to charge an endless number of vehicles) to make e-vehicles truly practical.

    This is why I like the idea of e-bike, the human contributes some of the power needed, which allows for a smaller battery pack, and therefore improved range and performance. They also really help to solve the obesity epidemic within the US.

  4. #4
    f0x
    f0x is offline
    Junior Member
    Join Date
    Mar 2010
    Posts
    22
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I thought a lot of ebikes have at least 10miles per charge?

  5. #5
    Senior Member
    Join Date
    Oct 2009
    Posts
    178
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    That's what I meant. With modern commute distances, not many people could find practical use for an e-motorcycle. If you live in SF, you have to carry an extremely small pack to be able to climb hills at traffic speeds, which means very low range. However, if you live in Florida, for example, this may be practical since there are practically no hills, so vary large battery packs could be used giving excellent range.

    Unfotunately, the flat states tend to be of the political spectrum that would never buy such a device, and the hilly states aren't practical places to use it.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •