question
 

can you tell me someone if i can use vxl-3s velineon esc with lrp x11 or x11 motor? and with what battery?

That speedo is a sensorless speedo, so i don't think it will work with a sensored motor ;)

It will work - just remove the sensor lead. I've used my X11 with sensorless speedos (Ezrun and Orion Vortex in sensorless mode) but it does cog very badly at low speeds, far worse than sensorless motors seem to.