Originally Posted by
prettyshady
what Sixty Fiver said, you need the crank removing tool. I brought mine from a super market for 5 euros so they can be very cheep.

leaves you with this
A word of caution to the OP: The corresponding washer to that nut appears to be still wedged in the crank in this photo. Make
sure you remove it before installing the extracting tool, or you may strip the threads on the crank.
-Kurt