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Converting pit bike/scrambler to electric

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boscawen46:
Hello ,
I am wanting to convert the pit bike shown or similar to electric so that my 10 -11 year old son son can ride it without disturbing the neighbourhood. There are kids motorbikes out there for sale ready made but they are all too small for him.
The pit bike is not very large and I have a few questions about the conversion.

1.) What sized motor wattage and voltage would be an ideal size to give it a good but safe turn of speed and make it perform well over cross country.I am thinking 48v 800w?

2.) Can I use  a twist throttle and speed controller etc kit suitable for an electric bicycle. Obviously for this wattage.

3.) If I keep the rear wheel exactly as it is would an ideal sprocket on the motor be 14 tooth or should it be less or more?
Thanks

boscawen46:
Any advice? Thanks

Richard230:
You might also want to ask your question here.  The forum specializes in IC motorcycle conversions:  http://www.elmoto.net/forum.php

boscawen46:
Thanks for your reply and advice. I'm a bit surprised not to have got more technical advice on this forum maybe that forum deals with that sort of build more specifically. Cheers J

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