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BBSHD Kv?

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    BBSHD Kv?

    I cannot seem to find the Kv for this unit anywhere.. I want to compute the gear ratio needed for a 30mph target speed, using a 17" or 19" motorcycle tire. It is possible that a Sturmey Archer 3 speed disc hub would be used. It is also quite likely that 219 chain would be used due to the massive flexibility of gears available.

    Thanks in advance!
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