As to the Tigra, Swiss bikes can come with a variety of threading. The most predominent BB threading would be Swiss. The adjustable cup is like French 35X1 right hand thread. The left cup is a left hand thread. The Campy NR fixed cup is marked 35 X 1 followed by a large S. I have never worn out any of the Swiss headsets on my two Swiss bikes but I have always presumed they were French thread. The strange thing is that they take 22.2 mm stems.
Joe Bender-Zanoni
Took a lousy hard fall at about 20mph today on a steep downhill corner.
Slick Avocet tires in the rain is a bad idea. Anytime you ride away from
one like that you are pretty lucky. Keep the rubber side down!!
At 05:40 PM 11/7/00 -0500, Tom Hayes wrote:
>One of the problems in being ignorant about certain aspects of bicycles
>(there are many; this being only one) is that when I ask a question, like
>yesterday's when I asked about azzurro components and I receive no
>response, I cannot determine whether my question is so obvious no one wants
>to bother answering or it is so obscure that no one can answer. In any
>case, no one responded about azzurro parts, except one knowledgeable person
>who would also like to read any information on Azzurro components. They
>appear on a Lazzaretti bike.
>
>On to another question: anyone know anything about Tigra bikes: swiss flag
>on the seattube, nervex pro lugs, NR components marked 73, all 531. I
>haven't taken the crank off to determine whether the threading is French or
>not; the current owner doesn't want me to take it off unless I'm sure I
>will buy it. Sort of picky person, but that's all right. He said he
>bought in Germany around 1975.
>
>Thanks for any information on either.
>
>Tom Still in the Dark in Chagrin Falls
>
>Tom Hayes
>18585 Munn Road
>Chagrin Falls, Ohio 44023
>hayesbikes@nls.net
>hayes@jcu.edu