I am Electrified !! US Pro-drive / Currie

Discussion in 'Electric Bicycles' started by srdavo, Jul 7, 2007.

  1. srdavo

    srdavo Active Member

    Hi y'all,

    I spent yesterday installing my "antique" Currie kit on a sturdy Mongoose mtn bike. ok...it's not antique. more like obsolete! :lol:

    Everything went together well. I got impatient building the mount for the battery box.....so, heavy-duty zipties to the rescue! I will finish the mount soon & right, as I have to replace the batteries. Seems sitting on the shelf for the last 3 years has not helped battery life. seems to charge only to 40-50% of a full charge. (these batteries are possibly 10 years old. time to replace.)

    I did a couple test rides. smooth.....quiet.....fair amount of torque....12 mph top. with new batteries it will run a solid 18 mph.

    I'll post some pics later.

  2. srdavo

    srdavo Active Member

    600 watt motor
    24 volts


    more to come......
  3. jerryt

    jerryt Guest

    Looking good Davo. Looks like a good, straight forward fit.
    Whatcho running 24v? How many amps?
  4. FatPete

    FatPete Guest

    Before you replace the batts with sla's, consider using a Nimh or NiCad pack. They are really cheap now and the weight saving would mean better performance and range. Plus you don't have to change them so often. Lead acid batts are great for big amps, but if you don't need the amps go light.
  5. srdavo

    srdavo Active Member

    Can you post a link to some Nimh & NiCad dealers & info. I searched the web & realized I don't know what I'm looking for :? :lol:

    the standard Currie sla batteries are 12 volt, 12 amp and weigh nearly 9 lbs. (it takes two of these, to make 24 volts)

    thanks in advance
  6. jerryt

    jerryt Guest

    I have not done business with any of these folks but the first one (ebikes.ca) is highly recommended by the ebike folks on other forums.

    http://www.ebikes.ca/index.shtml primarily so you can read what he says about the recent increase in battery costs. Also click on batteries to read the difference in types.

    Check out this guy http://ebatteriestogo.com/merchant2/merchant.mvc?Screen=PROD&Product_Code=D5745-AB

    This guy http://www.ebikeconversions.com/pb/wp_83756b98/wp_83756b98.html?0.5172162457053038 may have batteries and controllers,chargers, etc

    Keep in mind that a battery upgrade probably requires a charger and controller upgrade. EDIT: Talk/email Eric at ebikes.ca and he will explain what you need
  7. srdavo

    srdavo Active Member

    thanks for the links. I'll look into some batteries.

    I finished the brakes & added a cyclometer. a fresh charge this morning, & it runs 13 mph.
    All I need is a comfortable seat & some taller handlebars, so I can sit more upright.

  8. gone_fishin

    gone_fishin Guest

    now that looks like a solid contraption...did the hub adapter come with the original kit? whole hub or wheel maybe? is there any whine coming from that lil chain-drive?

    i took a closer look at the adapter, interesting, any chance of an even-closer look?
  9. srdavo

    srdavo Active Member

    the hub adapter is part of the motormounting plate with the kit. the motor has a little whine to it.

    closer look?


  10. gone_fishin

    gone_fishin Guest

    so, there's rubber inside to grab the spokes?
  11. srdavo

    srdavo Active Member

    no rubber.

    the spokes fit into slots on the adapter.
    everything fits nice & snug. does not move and doesn't seem to stress the spokes.
  12. srdavo

    srdavo Active Member

    New Batteries

    To keep things simple (& cheaper), I bought a pair of 12 volt/12amp sla's.
    I could have saved $10 on Ebay, but these were on the shelf, at the local Battery Mart, charged & ready!!

    18 mph on level ground. really good take off. I rode it for 30 minutes yesterday (7+ miles) & didn't notice any power loss. you ought to hear the cyclists, when I pass them, and I'm not pedaling. :lol: :evil:
  13. srdavo

    srdavo Active Member

    mileage update

    After 2 days on the same charge;
    start: 18 mph top end
    After 44 minutes ride time/ 10.5 miles covered
    new top speed= 15.5 mph

    :evil: I know.....my results would be way better if I'd just pedal some. :lol:
  14. jerryt

    jerryt Guest

    Bike looks good and sounds like you're getting good performance. Its hard to beat lead acid batts.
    You prolly already know that you don't want the batts to discharge too much before recharge. Heres another link
  15. srdavo

    srdavo Active Member

    thanks & thanks for the link!! :D
  16. nice setup davo, looks solid. But I gotta say, 18 mph is pretty weak, that is basically an even pedal on-road, not even close to anerobic, I think I drafted a car faster than that today on my 29'er. Does it still go 18mph uphill?...that might be worth something. Its still a nice build though...Partyon!
    Last edited by a moderator: Aug 21, 2007