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  1. mazzola

    SOLD 3kw Conversion Kit with 4 Speed Gearbox Foshan Uni [USA]

    New, never used conversion kit with 4 speed gearboxed motor, controller, and accelerator from Foshan Uni Tech. Originally bought a kit from Alibaba (see similar listing for specs). Asking $500, shipping included, which will get to your door way faster than the 6+ weeks from China. I'm willing to...
  2. mazzola

    Electrical Insulation/Hi-pot Test

    I've been reading UL 2271's standards for battery safety but am having trouble understanding how the "Dielectric Voltage Withstand Test"/Hipot would work. The test is meant to ensure the battery has sufficient insulation between its enclosure and the high voltage circuits within. But I don't...
  3. mazzola

    What prevents the axle from slipping out of dropouts?

    For hub motors that don't have any chain attached to it, what prevents the axle from slipping out the back or forward whenever the bike accelerates? Looking at other builds it seems like slippage is possible. Is it just the pinching of the axle by the swingarm/axle bolt that prevents slippage in...
  4. mazzola

    1975 Honda CB550 Conversion

    For my first build, I've started converting this 1975 Honda CB550 with the intention of turning it into a city commuter that preserves the original aesthetics of the motorcycle as much as possible. There's a pretty big restoration part of this project (e.g. painting, fixing bearings, leaky...
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