So, I understand modern crankset removal. Awesome. Trying to update my super old Bridgestone crankset due to it being bent and causing huge problems in a crunch. The biggest problem is I can't figure the thing out. it's nothing like modern cranksets. There's one screw. "Start with undoing that." Nothing. The scre itself seems to be welded ot part of an interior piece that doesn't move. Poke, prod, pull. Nothing. There's no endcap covering anything (where it would be normally is solid metal). I searched the forums and found one post with my same bike, but the OP never responded. You tube is a no go as well. Ideas folks??
My bike is a 1971 Bridgestone. There is no name as far as I know. But I guess that was the C. Itho & Kabuki era. Pictures for bike & crankset below.