It was common practice, and most BBs came with them, to use a plastic acorian type sleeve between the cups to prevent contanination.
Most frame builders put a logo down there. Colnago used their club, Geurciotti a star, some just dots or slots.
RiGi had there own ideas for venting the BB shell
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
Last edited by Bianchigirll; 02-18-13 at 07:24 PM.