Hey everyone! Hope this is the correct place to post this. If not let me know so I can post correctly. I am looking for a front sprocket for my bike. In my research I have found it called many different things. It is the front sprocket the chain wraps around. Maybe a front sprocket output? I need to know what part I need to replace this? It is stock. Internet search has been confusing. I have seen it all in my searches. Maybe a 15 tooth sprocket? I have also seen 417/15t. I need to replace this part and have no idea what I should be looking for. I just acquired this bike and have no previous history or even a manual. Any help or suggestions would be greatly appreciated.