BTW, I have one and use it, but especially on the 16mm end the outside diameter is a bit much, makes for a poor fit. Maybe some time spent on the grinder could help it out some.
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Larry:1958 Drysdale, 1961 Gitane Gran Sport, 1974 Zeus track, 1988 Masi Gran Corsa, 1974 Falcon, 1980 Palo Alto, 198? Vitus 979. Susan: 1976 Windsor Profesional.