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Laser tachometer arrived yesterday. At 60 volts the motor reaches a peak of 3600 RPM.
That's quite a bit faster than I was expecting. I will have to use two reductions to achieve a top speed of 40mph.
3.818 : 1 (41t : 11t)
1.4 : 1 (25t : 35t)
I won't have the option of using a belt at these speeds unless it's a timing belt. But those are just too expensive for me right now.
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