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  1. M

    Switchable KV

    For my ebike motor (prima powerbike with 9 pole ABB brand motor) to go any faster I need a higher kv motor or switch the windings from (3 times) 3 in series to 3 parallel and how cool would it be to make it switchable on te go? 0-15mph low kv (series windings) and 15 to probably 30mph higher kv...
  2. M

    Need a simple 36v 250W sensorless controller

    I'm looking for a simple and reliable 36v 250w sensorless controller for my PRIMA Powerbike and my wives Piaggio Albatros (technically the same). The original controllers are sadly nothing but trouble, I know electronics and daily repair al kinds of equipment but these are just...italian.. So...
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