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    Hub Motor Dilemma

    My 1964 Sears Allstate is needing a hub motor. With virtually no suspension or brakes I am not looking to break any speed records. My target is 40mph cruising, 45 max.. The problem I'm facing is motor rpm. The 16 inch wheels, which I want to keep, will require a 625 rpm motor (if i did the math...
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    End of Successful Riding Season

    Having just pulled my battery for winter storage. It is a good time to share the experience I had with my electric motorcycle. First I would like to thank all the people who provide content on this forum. I could not have built the bike without your information. The bike is a 1967 H-D Sprint...
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    Charging with portable solar power station

    I would like to build a portable solar powered charging station for my bike which has a 74v 50ah battery. The wagon I will use will mount a 200w 12v solar panel, a 30a controller, a 12v 100a lifepo4 battery and a 1000w invertor along with my 84v 4a charger. Am I correct thinking this setup...
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    Riding in the Rain

    It will be spring before I can ride the electric motorcycle I am building, but I got thinking of something. Here in the mid-west it is not possible to ride a motorcycle without occasionally getting caught in the rain. Does anyone have experience with this or ideas on how to prepare the bike? Is...
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    Newbee with some basic electrical questions

    I have a 50ah battery that can supply 150a continuous and 300a peak and a controller that can handle 120a continuous and 200a peak. Here are a few things that I don't understand: The cables from my battery to controller are 8ga. Shouldn't they be as big as the wires from my motor? I have a...
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    Lifepo4 battery needed for qs138 70h v3

    Hi, after reading this site for a month, thank you for all the info, I have started my first EV build. The frame is a 1967 H-D Sprint 250ss. I have installed a qs138 70h v3 motor and looking to buy a Votol EM-200/2 controller. I have room for a 72v 60a lifepo4 battery, but cannot find one with a...
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