Schwinn 564 7sp cassette cog replacement
Hi guys,
I have a 564 circa 1990. I just replaced the chain(original) and now it's skipping on the 19t cog. I read these cassettes aren't available anymore.
1) can I find a replacement cog?
2) is there a 7sp cassette that will fit on the existing rear wheel(stock)?
Any info will be appreciated.