If you want to min the cost, I suggest you play 2S lipo. As least this way, you can use your current ESC. As for battery, those 2S 1/18 battery is actually cheaper than the 1S 1/12 battery. (unless you want to go racing, then 1S is your only choice)
If you go 2S, you can pair it with 7.5R/8.5R and the speed is about same as 1S+4.0R.... with much less heat in motor and ESC.
For tires, just run it straight from the box. Usually softer rear, harder front. |