Looks like you've using the wrong measurement. The 6.2cm / 2.4" measurement is the Bottom Bracket Drop. This is the vertical distance from an imaginary line intersecting the axles of each wheel down to the center of the bottom bracket.
BBSHD 52v1000w Mid Drive High Definition Power House. The best high performance mid drive conversion kit on the market. With peak output of 1600w and 160Nm of torque. Weight of BBSHD Motor: 5.8kg. This motor is rated to 1000w but has a peak output of over 1600w!