Joined: Apr 2006
Posts: 4,046
Likes: 935
From: Washington County, Vermont, USA
Bikes: 1966 Dawes Double Blue, 1976 Raleigh Gran Sport, 1975 Raleigh Sprite 27, 1980 Univega Viva Sport, 1971 Gitane Tour de France, 1984 Lotus Classique, 1976 Motobecane Grand Record
Okay, I get it now. The answer is yes, your 5 speed chain will work with six speeds. But if you're replacing your freewheel, it's always a good idea to replace the chain at the same time.