This motor is replacing the emax i was selling. it is just as powerful and cost $5 less. i also like that it comes in silver and black instead of red. Red clashes with pink.
i have no published specs but this is a fast powerful motor for 3 or 4 cell use. i am running 3 blade 5x4x3 on 4 cell with no heat issues. i have also used with 6x4.5 and 6x4 2 blade and 3 cell. both have more than enough power.