> Jim Langley sold a fixture which either did a > 100 bcd or a 94 (?) and unless you have a 36t > Campy or know where one is I wonder if it might > not be better to use a bcd which has a selection > of chainrings currently available?
I have one of the Jim Langley jigs/fixtures and it's intended
to drill things out for 74mm or 86mm BCD. I bought it from Jim
a couple of years ago, when it seemed as though everyone in my
neighborhood needed to convert old Campagnolo cranks to
triples. It looks like this:
http://www.jimlangley.net/
I've never heard of a version that was designed for 100mm or 94mm BCD chainrings. (Although that doesn't mean such a version never existed.)
Apparently, Bruce Gordon, the well known and highly skilled frame builder, has a similar sort of fixture. Fred Rednor - Arlington, Virginia (USA)
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