[Alexman]

I bought an efinin zip zap SE today and the Initial D hopup. There are so many diffenet colors and different pinions(gear?) that i want to know if someone can break them down in terms of most torque, most speed, etc. etc. and can someone post a bit motor that is completely compatible and have uber amounts of speed please? (that is, if the bit motors are even compatible, the FAQ said no...or something.)

thanks,
-Alex