Originally Posted by LgReno

Ok.. so i went to my schools bike collective where i volunteer. theres a chain length measureing tool. Turns out the chain was very streched. i put on a new one. and not the chain is flush against the teeth of the big chain ring.

BUT!!!... now.. the chain seems to skip in the back... while on the smalled cog. The cassette doesn't look worn at all.

I realize that its best to change threaded freewheel at the same time as a chain... but this is pretty vintage so.....is that the way i should go?