Does anyone know of any sources to find old 7speed Suntour cogs? While taking apart a problematic freewheel, I broke a tooth on the 13t because it was so tight. I'd hate to turn this into parts because of my stupidity. I believe this is an Suntour "Alpha" freewheel. I saw on Sheldon Brown's site that a Shimano 7speed cog might work, so I may try that as they seem easier to find.