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    180kv outrunner powered offroad e-bike

    Im currently building some portable speakers that can be strapped onto the bike. Just had everything ordered.
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    180kv outrunner powered offroad e-bike

    would a belt drive be possible for this project? I know the torque can snap them in half from these motors but I really like the noise of an outrunner and don't want chain noise interrupting that.
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    Schwinn Spoiler---Now with 1200w Cyclone Motor

    Love the handlebars TopCat, very nice look to them.
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    180kv outrunner powered offroad e-bike

    They are great lookers arent they? Ive been viewing your thread Topcat, looking very good I have to say.
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    180kv outrunner powered offroad e-bike

    sorry I didnt see the no load i.e not on a bike bit. :oops:
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    180kv outrunner powered offroad e-bike

    I decided that I would invest more money into the project than originally intended. and the prices for the 130kv here in the uk arent actually that bad, so I thought why not? Are those figures for a no load test gwhy? I also sent a pm to lyen about his motor controllers.
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    180kv outrunner powered offroad e-bike

    ive had a think over and decided that maybe a road e bike would be best, and since im a fan of American chopper I thought why not give it a chopper frame? I looked at actual chopper parts on ebay and they were all over my budget but then I remembered a schwinn I saw a while ago and thought it...
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    180kv outrunner powered offroad e-bike

    thanks for all the advice guys I appreciate it. I like your idea too gwhy as its more aimed more my budget at the moment, I have looked at that motor before and considered it but as ususal the thought of more power tempted me away from it :) I may have to settle with this motor instead of that...
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    180kv outrunner powered offroad e-bike

    Il have a look into hall sensors as an option, it doesn't look to complicated. I think I will go for 22.2v 10A setup with the lipos giving me about 4000rpm from the motor. then give it a 1:2.5 reduction to take it down to 1600rpm which would give me about ~31mph tops which is spot on.
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    180kv outrunner powered offroad e-bike

    Il go with the 130kv turnigy then, but I cant afford a castle creations esc. People say that this turnigy 100 esc has worked on some e bikes so I might give it a try. http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=4691&Product_Name=TURNIGY_Sentilon100A_HV_5-12S_BESC_(Ver4
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    180kv outrunner powered offroad e-bike

    Ive compiled what I think will be the final electrics list, although I still going over the esc . motor $100 http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=5139 lipos $90 http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=9176 charger $40...
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    180kv outrunner powered offroad e-bike

    Thanks for the info Jeremy Although I will consider putting the 2 packs in parallel for a longer runtime. Having large wide tires (4 1/2") wont draw that much more Amps that a regular bike tires would? Im probably going to do a 1:3 gear ratio too.
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    180kv outrunner powered offroad e-bike

    so Jeremy if I got two of these http://www.hobbycity.com/hobbyking/store/uh_viewItem.asp?idProduct=8582 and put them in series I would be getting 44.4v and about 100a constant?
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    180kv outrunner powered offroad e-bike

    well if I didnt discharge the car batteries more than 70-75%, they would still last a while right? Kind of a short term solution until I have enough for the lipos. does anyone have any figures on the amp draw for this motor?
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    180kv outrunner powered offroad e-bike

    oh I can spend 100$ on lipos if I need to, it would just take a month or two to source the money. would I be able to get 24v 50a from 100$ worth of lipos? because I can always add more later on when I have the money.
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    180kv outrunner powered offroad e-bike

    Il probably set them up for a series configuration 48v, 40-50A. I only chose car batteries because they can be obtained for cheap at local scrapyards. I have looked at lipos but they are too expensive for me. I suppose with the amps being sub 100 I could get a turingy 80a esc for the same price...
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    180kv outrunner powered offroad e-bike

    This project will probably not start till jan/feb but id like to explain my idea and hopefully get a few questions answered to make the real build as smooth as possible. My plan is to make an offroad e bike which uses a turnigy 180kv outrunner which will be ran of 4 car batteries. I would like...
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