Gonna stir the pot a little...
An internally balanced crank is a good piece to beef up a motor for continuous high rpm work. In my mind the Chinese manufactured cranks & that type of use are incongruous. That's why racers purchase cranks manufactured by Callies, Bryant, King, HTC, etc.....
I feel if my motor will be used in such a way that the internal balanced crank is warranted, that I would go all the way with the real deal race part, for that added amount of insurance against failure.
cowboy from hell
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