Join Date: Aug 2007
Location: Monterey, California
Bikes: 1982 Fuji Team, 1979 Raleigh Team Record, 1984 Raleigh Team USA, Japanese Raleigh Super Course, 2000 LeMond Buenos Aires, 90's Schwinn High Plains, 1978? Austro Daimler Inter 10
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Yes, they are being produced.
BMX bikes use them because of their profile when used on the chain stays.
Many mountain bikes used them as well as roller cams, so the mounts are out there on lots of older mountain bikes. Like my High Sierra.
I went with DiaComp 990's. Good reviews, decent price.