do not buy a 2nd hand speed control!
do yourself a favour and get a hobbywing version2 120amp speed control. You can get one for around $100US, maybe even cheaper now. I have run all the speed controls out there, and this is the only speed control you can have that has all the functions you will ever need, that is updateable through the PC, and is the cheapest. You cannot go wrong with this purchase.
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