My electric bike, 57mph top speed

Discussion in 'Electric Bicycles' started by Lowell, Jun 28, 2007.

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  1. Lowell

    Lowell Guest

  2. Lowell

    Lowell Guest

    The bag above the top tube contains the chargers, bike multi tool, patch kit, tire levers and other misc items. Front brake is a Hope Mono 6 Ti, and the front fairing is a cut up pocket bike piece with a Honda CBR screen bolted on.
  3. gone_fishin

    gone_fishin Guest

    too damn cool!!! 8) 8)
  4. Lowell

    Lowell Guest

    Thanks! The only thing that sucks is charging the batteries. :(
  5. 5-7HEAVEN

    5-7HEAVEN Guest

    :shock: TOTALLY AWESOME!

    watching the video of the parking lot runs, i realized that the noises/rumbling in the video is NOT! the sounds of the electric bike, but of a nearby truck!

    i bought the CRYSTALYTE 400-series hub because the 500-series sucked a LOT of amps, per their salesman.

    i should've bought the CRYSTALYTE 500 hub! :shock:
  6. Lowell

    Lowell Guest

    The 400 series hubs are good for power assist bicycles. The lighter motor weight and lower amp draw means lighter batteries, and means a bike that is more like a bicycle you'd want to pedal.

    Now if you like speed and power, the 500 series hubs are the ticket. Batteries are going to cost more since you're going to be pushing a lot of amps, but it's definitely worth it. My bike weighs a bit over 100lbs, and I've pedaled it up to 25km/h on flat ground, but I normally don't pedal.
  7. Your making the electric setup look much more appealing to me after watching those vids.

    Would you care to disclose how much you've invested in your setup?
  8. Lowell

    Lowell Guest

    $450 X503 hub motor w/ rim and spokes
    $170 72v x 35A controller
    $70 IRFB4110 low resistance MOSFETs x 12
    $140 DrainBrain
    $1100 76 NexCell 2D NiMH cells

    Add fuse holders, Anderson Power Poles, wire and it looks like about $2k for the power system. I've put about 2100 miles on the bike so far, and the only thing I would change if I did it again would be to buy lithium batteries. Even though the up front cost of the newest lithium chemistries is higher, it should pay off down the road with increased cycle life. Less weight and better performance doesn't hurt either.
  9. stowaway

    stowaway Guest


    how many watt is ur electric bike?

    Ive only done a little bit of looking around at electric bikes, but i can onyl find motors that are 500 watts..

    I just cant see 500watts going very fast?
  10. 5-7HEAVEN

    5-7HEAVEN Guest

    :cool:stowaway, 500w@36vdc= not bad speed. multiply voltage by 2.533, and power is well over 1200 watts.
  11. stowaway

    stowaway Guest

    any idea where to get lithium batteries? and what type (or specs) i would neeed for a X503 hub motor.

    (ive got 2 gas motored, a 2 stroke and a 4 stroke bicycle.. now i want a electric)
  12. Lowell

    Lowell Guest

  13. stowaway

    stowaway Guest

    the bike sounds really good. But the question i have.

    why do Electric bikes always seem to be stuck together with Shrink wrap and sticky tape?
    Would look awesome if proper mounts were made.
  14. Lowell

    Lowell Guest

    The tape was supposed to be temporary, and I just never made boxes for the batteries. 4300km later and still going strong.

    No argument regarding better looks though with proper battery mounts. If I build something, it will probably be on a different frame, and ideally I'd like a gas/electric hybrid, so it will be a completely different layout.
  15. Sticky Tape...

    Yea Lowell, your bikes performance stats are good thanks for the post. I would like to have an e-bike and it looks like you have put lots of money and time into your system.

    But I have to say, you cant tell from looking at it because of the layout and design of the battery system. I bet you could get just as good weight balance with a front and rear panier system where you place the batteries on top of the panniers. Having your thing all taped up like that looks like a broken transformer!:yuck: (more than meets the eye..) Plus i bet its all sticky when it gets hot. F/R panniers arent more than 100 bucks. Hey, nice seat though!!
  16. Lowell

    Lowell Guest

    Ideally I want to get a completely different frame, possibly something full suspension, but still with space inside the main triangle for batteries.
  17. sgh

    sgh Guest

    92km/hr is your top speed.
    though what range do u get with your NIMH batteries?

    400 series motor, being 10lbs lighter, less taxing on batteries. is also quite nice up to par. on a regular 26" bike, 405 motor, 1.25" wheels, you could easily get at least 92km'hr. (with right batteries n controller)

    also if bike is disassembled, is lighter to take on vacations/travel.
  18. sbn

    sbn Guest

    Nice, I might get these, have a rough estimate on how far these will go if I got a not too cheap/expensive battery? I normally do about 40 mile rides.