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    My first scratch build: 30kw full suspension tandem velomobile.

    Hello everyone, I have begun the process of building my car replacement. I have built a few bikes, including a hybrid electric one with a generator for effectively unlimited range, but there has always been a problem: E-bikes suck at being aerodynamic, and so are limited to below 30mph if you...
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    Powertrain recommendations for a QS 273 powered faired trike

    Hello everyone, I have been thinking about building a 2 seater (inline seating to reduce frontal area) velomobile style tadpole trike, but with a massive hub motor to hit highway speeds with ease for extended periods. I estimate that it will weigh about 700lbs with 2 people in it. Target power...
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    Did a stupid: regen braking engaged when battery disconnected

    Hello, I recently have bricked my Sabvoton controller because of my poor design choices. I had the regen engaged when my unlocked battery came loose. This caused some sort of voltage spike and the controller is now E waste. I am wondering if anyone would know if it is possible to fix the...
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    Sabvoton 72200 e brake throttle wires

    Hello all, I recently purchased a Sabvoton controller. Unfortunately, it appears that I have purchased the wrong variant. I would like to know if I can add in proportional regenerative braking functionality. If any of you have a Sabvoton controller with this capability, could you post a picture...
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