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oops I meant what resistance across the shunt should I aim for for 30Amps end result

Clever. I have a multimeter. What should I aim for for 30amps?

How bizarre. How does that work. I assume decreasing resistance?

Ah fair enough. I didn't see any of this when I bought mine. But now I have it I'm as well sticking with it. Now I know for next time.

I totally understand that, but my reason was cost and incognito. It isnt $25 more. The motors you suggested to me (although no doubt very good) are coming in at about £600!) compare that the to £150 I paid for mine is a huge increase. To be honest I'll just leave her as is for now anyway. The...

Sure it would add some weight. But if I went 500W it would only cost me about £250 (£150 for the wheel and £100 for a 36v 7.5Ah battery). With the help from the existing 1000w motor 7.5Ah should have plenty range.

Budget is really about £0 just now lol. Was just checking if there was something "safe, easy and cheap" to do. In the future, I would consider going 2WD (as below). Thanks. Makes sense. I guess you can have cheap or great but you can't have both! To be honest, as I said I am very happy with it...

OK the controller says on it 48V, 26A, 1000W Which is odd... Because I make that 1248W ? I keep my battery sitting on a cool pack and it never gets more than every so slightly warm. If that determines how many amps are safe to pull? What about giving it more volts? instead of Amps? Lets say I...

Thanks, Simple as that? I'll check the controller that came with the bike but I "assume" it's 20Amp (as 20A @ 48V = 960W). I seem to remember the battery saying max output 25Amps. but might have been 30. I deliberatley picked the highest I could find. (But being Chinese it could just be waffle)...

Hi all, I'm new here. About 6 months ago I built myself a cheap ebike commuter. I bought one of these. http://www.ebay.co.uk/itm/Electric-Bicycle-E-Bike-Motor-Conversion-Kit-26-Rear-Wheel-48V-1000W-Hub-Cycle-/172348979639?hash=item2820ccb9b7:g:ve0AAOSww5hZGQ5u A cheap MTB and a 15Ah battery...