"jim beam" wrote:
result? the vigorelli is a complete noodle & a shimmy nightmare.
now, some of the shimmy could be the wheelset. i experimented with a
badly shimmying frame a while back & was able to tune out some of the
resonance with a stiffer rear wheel [straight gauge spokes drive side
& hub with a fractionally better bracing angle] - improved the ride
substantially, but the frame still had the propensity to shimmy. same
with the vigorelli, even with a straight gauge spoked rear....

Tom Sherman wrote:
How about wrapping the tubes in the head tube/down tube/top tube are
with carbon fiber composite to add some stiffness to the frame?

Funny. Very funny.

Sky Yaeger, Bianchi's designer actually did that!
She spec'd an aluminum welded frame with 'carbon wallpaper'
on the chainstays ( "rigid, yet flexible") as a joke -
but Bianchi booked orders for it! Dealers actually believed
it! No kidding.

--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971