At 06:31 AM 5/14/2001 -0700, Bruce Robbins wrote: >Hi all,
>I was hoping to replace the cranks on an early 1970s Holdsworth but the thread on the drive side has been chewed up at the start (not >by me!) and I can't get the extractor to "bite".>>
>Does anyone know the best way of resolving such a problem? Is it just a case of levering it off by wedging something between the >bottom bracket and the crank arm?
Surprised nobody's mentioned this, but there is a chaser available for every thread on a bike, including that one. I believe it is made by Bicycle Research, it has a pilot which threads into (or onto, for cheap bikes) the BB, and the rest is easy. Your LBS should either have one or be anxious to buy one. It's cheap, $10-15 or so.
Now, if you've got some old Stronglights or something, you might be stuck
with using an automotive puller, because I'm pretty sure the BR chaser is
only for modern threads.
Goose Creek, SC