http://www.bilenky.com/
moisture is allowed in the tube, it just shouldn't hang out there. the plastic thing keeps the grit out. the grooving on the plastic allows for a spring action for good sealing of the bearings and water drainage.
I opened up a bottom bracket on an undrilled bianchi pista sometime back
that had an inch of water in it after riding it in a downpour the previous week. gotta quarter inch hole now.
Waldo Magnuson wrote:
> Hi Chuck,
> My guess is the cutouts were only to save weight. I have a 1973
> Italvega SuperSpeciale which has no BB cutouts and the 1974 Italvega
> SuperLight did have cutouts. Both were top of the line for their year.
> Usually there was a plastic liner inside but I agree with you why open
> up the frame and bearings to moisture and dirt to save a few ounces.
> Skip Magnuson
> Spokane, WA USA
--
gabriel l romeu
chesterfield nj usa
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