Stronglight model 107 chain ring - 44 tooth - 144 mm BCD (NOS)
Date: 12/26/2012
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OMAS catalog (1980)
The original copy of this 1980 O.M.A.S. catalog belongs to Christoph Ulbrich who has been generous enough to provide the digitized material presented herein for the benefit of the vintage cycling community as a whole.