chain ring triple to double

Habany Posts: 2
edited May 2018 in Workshop
hello Folks,
i own a KHS XCT565 bicycle with the following specs:
i need to know whether can i replace my triple 22/33/44 chain ring with double 24/36 assuming the shifter replaced already.
do i need any kind of spacer in order to keep spacious between the small ring to the frame (rear triangle)