Hello all, I have had an old logo cinelli 1R sitting in a box for a long awaited build, it has the patent number stamped on the underside with made in italy as well. Today I pulled the stem out for examination and much to my surprise it is equipped with an alloy binder bolt which appears to be original!! Nothing about this appears in the cinelli section of this site or the one which a link is posted to. Can anyone tell me how long this lasted? I assume the alloy binder was present at the introduction in 1973 but how long before they switched back to steel? In my relatively short time in the VLW world I have not see another one of these stems, is this fairly uncommon? I no longer think this would be appropriate for a rider, I assume alloy binder bolts were short lived for safety reasons.
thanks for your help.
Vancouver, BC, Canada