Keep in mind the dimensions of the "motor can", On the site you linked to it says 28.4mm ...................... Check the dimensions of your mounting plate for the motor on the HBK2. I think it is only 28mm. You might have to do some modding to the mount to get it to fit. If you do get it and its too big......... Get a spacer plate for under the motor and longer screws, don't cut away the entire "flange" that encircles the motor. It weakens the frame at the motor mount and is very prone to breaking.
That looks to be an excellent choice in motor for ballistic flying.......... just keep in mind it may not be a drop in replacement.


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Of all the things I ever lost....................................... I miss my mind the most!