aka Tom Reingold
Join Date: Jan 2009
Location: New York, NY, and High Falls, NY, USA
Posts: 40,504
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
Mentioned: 511 Post(s)
Tagged: 0 Thread(s)
Quoted: 7350 Post(s)
That Shimano is loads better than the Campagnolo one, so just leave it there. From the picture of the Campagnolo with the chain on the biggest cog, it looks like the top pulley is pushing the chain onto the cog, and the pressure is making the noise. Or something. But just take that derailleur and put it in a display case. Or donate it to the disraeligears guy to document and study.