Joined: Jan 2009
Posts: 44,306
Likes: 6,566
From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
I did a similar thing on my 12-speed racing bike. Cranks are expensive. Freewheels are cheap. The downside is the steps between the gears, but that's not terrible.