At the end of a quick family reunion trip from Right Coast to Left, I stopped at Bob Freitas's house way up on the hill N of SF, to compare some Cinelli Bivalents. I had contacted him after he won the recent eBay auction for a bag of Cinelli parts, to see if some of his spares could make up for the one piece I miss, and vice versa..
We got a first-class Cinelli hub surprise. Now, I'm used to Italian craftsmen and their Continuous Improvement philosophy ("What the heck, why don't we try it another way for a while?"). But this still surprised us both: Between us, we had 4 Bivalent skewers, with identical male threading on the ends. Bob also had two of the front "receivers," the assemblies that mount to the fork and into which the skewer threads. threads Quickly, with a very coarse thread. In fact, it was worse: NONE of the skewers would thread into either of the receivers. In fact, when we looked very carefully, the female parts were double-helix; with starts at two points 180 degrees apart. The males we had were all single helix, like conventional screws.
Anyone want to make a run of single-thread receiver assemblies?
harvey sachs
mcLean va