Lou Deeter very generously gave me free at Cirque a number of used but still very serviceable chains. Among them I found a Regina chain of a type I've never seen before. Instead of the normal symetrical dumbbell-shaped sideplates, the plates on only one side have one straight edge (i.e. no inward curve) while the opposite edge has a "cutout" appearance in that it curves inward more drastically in the center of each link than is the case with the normal dumbell shaped plates. Anyone remember these and know the idea behind them? This also raises an issue in that there is no doubt a right and wrong way to install them. I presume one should install the chain such that the "cutout" edge is at bottom in contact with the cogs where the chain passes over the top of the FW. I am also guessing the "cutouts" are meant to ease the upshift to larger cogs, and that the side of the chain with the asymetrical plates should therefore be positioned on the inside facing the center of the hub. Anyone know for sure? The chain is marked "Regina CX", but oddly, another chain in the lot also marked "Regina CX" has conventional sideplates.
Also in the lot was a chain, which looks nickel-plated, marked "OTO" and "Super", but I cannot find a marking for country of origin. Is this Italian? Japanese?
Regards,
Jerry Moos