Will this setup be ok?
 

What so you guy's think a bout this setup in a slash 4x4 ?
Tekin 4030 1400kv motor mm.pro esc in sensored mode and 6s lipo ?
and geared for 40-45mph ? with stoch sized tires ? and to have 20min+ runtimes how large lipopack's do i need ?

Should run very cool, 6s 4000-4500mah should do the trick.