Max cog capacity 1990's Campagnolo Chorus 8 speed?
I have a friend who loves her old CF road bike but is struggling on the hills. She has standard cranks and a 12-21 cassette. There is an 8 speed exa-drive 13-26 cassette on Amazon. Would this along with a new (longer) chain to accommodate the 26 be the easiest and cheapest solution?