Re: If you had $300 and a mountain bike...
I am confused on how the shifter kits work... when hooked up to the bicycles drive system, does the motor turn the pedals? or is the a freewheel somewhere? (I can definitely see the advantage of having multiple gears to choose from, being able to have power at all times)
All the advice you have givin me so far has been very helpful so far =)