Deciding on which Motor 24v ~ 48v 500 ~ 1000w unsure how to compare the graphs

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MasterCATZ
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Joined: 04/21/2010
Points: 4

I am wanting to run Dual Motorized Hub wheels on my Bike ( so I can kick in a back up motor if I need more power )

and unsure if I should do

24v 500w
24v500w.png
48v 500w
48V500w.png
48v 1000w
48v1000w.png

I have 2x 24v 10ah batteries originally I was going to install paralel to Double the AMP hrs (20ah) but now Considering series to Double the Voltage to 48v

I think the 48v 500w is the better of them ..
and so far I can only find 1x regenerative braking kit on ebay ... and its 48v 1000w

http://cgi.ebay.com.au/48V1000W35AH-Regenerative-Braking-Controller-for-e-bike_W0QQitemZ150429153527QQcmdZViewItemQQptZAU_Sport_...

I am actually considering getting everything from them , it might be cheap and nasty but so is the old 15 speed bike its getting attached to :P

pretty much after something I can drag along on the train and can get me short distancees ( around 10km )fast

here in AU legal limit is 200watts ... but if I install an limiter .. I am sure I will be fine ( maybe the 48V motor can run on 24volts ?)

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MasterCATZ
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Joined: 04/21/2010
Points: 4
Re: Deciding on which Motor 24v ~ 48v 500 ~ 1000w unsure how ...

sorry new ... was hoping their was an edit button .. and if their is .. where is it :P

how would I go about making an formulaur to find out what Nm their would be at a fixed watage so I could compare ?

ie know what each motor can do exactly @ 100watts 200 watts 500watts

how would I go about making an formular to find out how many watts are needed to reach a particualur Torque / RPM

cheers for looking

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