Originally Posted by
mtnbud
How do I figure out the front chainring BCD on my 1994 Specialized Epic? I've been thinking about replacing the 42 tooth chainring with a 39.
I can get a new 39 tooth Sora chainring with a 110 BCD for under $17. The Sora is for a 9 speed chain, but my bike is an 8 speed. Should it still work?