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by derekp7 3667 days ago
The biggest expense is usually the battery -- the one I got (700 watt hours) was about 500 (with shipping), and it can get me from 30 - 60 miles (hard throttle only vs. taking it easy and pedal assist). Lunacycle is now selling a small size pack that is about 1/2 the capacity of min (about 300 watt hours) for $230, plus $30 shipping, and you will need a charger (another $35 - $70).

A decent hub motor kit starts off at around $350 from a reputable vendor, you can either put on a front or rear hub motor. I've heard good things about the Golden Motor's magic pie kit (and variations) -- this is a direct drive from $325 to $375 or so, but since it is direct drive I would put it on the back wheel myself. The only front wheel conversion I would do would be a geared motor.