Originally Posted by jowilson

I believe that it is a Promax crank. I can't confirm until next week, sorry. I found the size of the allen key, which is 4.5mm, but as stated in the first post, the hole is very shallow and I can't get any leverage to take it off. I haven't checked the other side to see if it's riveted but again, I can't confirm until next week.

Josh