RE: best motor
I would look on here in classified motor section and see if there is a history of the motor being sold and for how much.I have seen them on here before so you should see something. As for the price of a new motor being worth it , it depends on how fast you want to go. If you want to cruise then a stock zen would be a good bet ,but if your looking for some speed then the k30 is an option. Also another option is going with a stock zen and putting a head kit on it down the road as you grow with the hobby. You can make a stock zen come alive with that . There also the other site JRCBD that has some good deals on used motors .Just deal with someone that has many post so you have a better chance at quality stuff .The guys over there try to weed out some