Johnsons wrote:
> Purpose made seat tube reamers can be difficult to find in the required
> sizes and if you find one they can have disastrous results if not used very
> carefully indeed.
An adjustable reamer (size "I" IIRC; I'm not near my shop at the moment)
works well for reaming on-topic frames.
> I always push some cloth way down the seat tube first to stop metal
> particles dropping down into the bottom bracket area. When finished I turn
> the frame upside down to remove the cloth and the filings.
Most of the frames I ream are bare, but if not I usually ream the tube with the frame held upside-down, so the particles drop out of the tube. But the cloth is a good idea.
--
-John Thompson (john@os2.dhs.org)
Appleton WI USA