Joined: Apr 2007
Posts: 12,567
Likes: 2,740
From: Thunder Bay, Ontario, Canada - burrrrr!
Bikes: 1958 Rabeneick 120D, 1968 Legnano Gran Premio, 196? Torpado Professional, 2000 Marinoni Piuma
Tapering a spindle, without proper milling equipment, is not a good idea. As suggested by others, get a proper spindle.
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"98% of the bikes I buy are projects".