Sorry, a small rectification;
The XL motor of the lehner Basic are not 1/10th motors, they are larger; they however don't use segmented magnets.
the more expensive series of Lehner (1920/1930/1940 etc) do use segmented magnets.
Here is a link to the Neu motors; (made in the US btw)
http://www.rc-monster.com/proddetail...091.5ys&cat=20
This is not the KV i recommend (unless you want a REAL powerhouse) but you can shoot Mike an email about the other KV values; 1800-2000kv would be nice for 4S.
Here is the manufacturers link;
http://www.neumotors.com