So the other day my friend sold me a sprocket for 10 bucks cuz he didn't need it and had no idea how to get it off. I thought it would be pretty easy(i was completely wrong) and my old one got bent up pretty bad. He just gave the thing to me like this:
So now I have no idea how to get it off, and no bike until I do. My cranks are a 3 piece sealed. My friend said he got it from an unsealed frame so I think this would be called a 3 piece unsealed. idk. (I have no experience other than 3 piece unsealed) but i was just gonna drill a hole in it to attach it. I've only found one other topic about this and there really was no help cuz the poster didn't have any pictures. Any idea?