Stated getting parts for the Rally, no old truck to pull from so i need to start building my inventory .

I got a great deal on a MMP SCT ESC/Motor Combo (2400kv) and ordered two 6500mAh , 55C, 2S from SPC. Next week will orders some 3S.

So, my question is, what is a good starting point for gears, both for the 2S and 3S.

Thanks for all your help!