Well i just noticed mike has both the 1515 2.5d (1650kv) and a 1512 2.5d (2000kv) both finned i think the 2000kv is a little much for 5s but i do have a 12 tooth pinion i can use.
so which one the 1512 3d smooth can or the 1512 2.5d finned?
if you want to stay with 5s go with the 3d or 4s with the 2.5d, I am taking in consideration you will be racing