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  1. D

    Acceleration problems

    I'm having some trouble with a new build, I just finished putting together a motorcycle using an HPM5000B 48v motor, a VEC300-48v controller, a 48V-50AH LIFEPO4 battery pack and standard 48v twist throttle. It works, but i'm having problems with acceleration. It takes about 6 seconds to get up...
  2. D

    Questions on a company

    I'm looking at getting a cheep kit motorcycle to convert to electric and have been looking at the "Bubba 250cc Chopper Motorcycle MC-DF250RTB Pro Street Chopper" as a starter, lots of pics available for the MC-DF250RTB model that look like a great bobber chopper style and its narrow enough to...
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    high throttle power cutoff

    I'm running into a problem. I recently got a XB-504 model e-bike and found it did not climb hills very well. I tried the shunt bypass mod and fried my controller so got a 12 FET 3077 Mark II Extreme Modder LYEN Edition Controller (with HALL sensor) as a replacement. I had already done a lot of...
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