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    Battery design advice

    I’m thinking of having a go at building up a battery pack. Something to do until lockdown is lifted! Pretty much decided on 21700 cells for a 14s2p pack to go in a saddle bag. Obviously easiest deign is 14 cells long 2 cells high when looking at the cell ends, but that’s too long for the bag. So...
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    Discreet battery solutions

    Has anyone seen or got any off the shelf discreet battery solutions like this one? Looking for something in a saddle bag rather than a frame bag. This one seems ideal apart from the price! I’ve got a hl battery on my bike currently but looking for something stealth on my next one. Controller is...
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    Akm-128 motor in akm-100 body

    I’ve got a spare wheel knocking about that has an akm-100cst motor built into it. It’s died a death and I was considering just getting a new motor from tbk and swapping over the internals. But then I thought, is it possible to put the 128 internals into a 100 body? They look similar, but...
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    Help me save my new motor!

    After I suspect frying my first hub motor I’m after some advice/confirmation to save my new one before I kill it again! I’ve got a 250w rear hub motor (AKM) rated as 36v. It’s mated to a 48v battery through a 9 mosfet controller. What I’ve learned recently is that although my controller seems...
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    KT display parts

    Does anyone know if you can buy parts for KT displays? I’ve got a lcd8h and I’ve broken the mount for the button box.
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    Fun while it lasted! Any troubleshooting advice?

    Well after just 140 miles my conversion has died. On a run this afternoon it started to cough and splitter going on and off then finally going altogether. I’ve got a spare controller (bought in error) so went to fit that. I then noticed one of the resistors was quite burnt so thought it may be...
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    KT settings, any advice?

    I’ve finally got my conversion all up and running and enjoying it so far on a quick test ride round the block. Couple of niggles though. It’s a 48v HL battery but it’s sitting at 52v on the screen. Also it’s showing full bars but when I start using the power it will drop one, then come back. I’m...
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    Wheel builder in Birmingham/Black Country area

    My best laid plans of buying a rear hub motor and getting it attached to my 26” rim have flown out the window as none of my lbs can do it. Does anyone know of anywhere in the West Midlands area that can build an electric hub motor up?
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    PAS sensor not fitting and is my battery charging?

    so finally got all my goodies from topbikekit but a couple of issues. I’ve got a hollow tech BB, but the PAS sensor is too big for my smallest chainring. It’s a 22 tooth. Quick google seems to suggest there are different sizes depending on teeth. Can I get another PAS anywhere (looks like 65mm...
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    Electrifying a GT Avalanche

    Hi, newbie here! Currently waiting on the delivery of a 36v 250w rear hub motor from topbikekit. Paired it to 48v battery with a built in controller for a bit of extra boost! After upgrading my normal bike to a trek hybrid, I decided to electrify my old GT Avalanche 26” mountain bike into a...