Actually I just found some advice about this here: http://www.vintage-trek.com/refurbish.htm
Search the page for 'rust'. Basically it says remove the bottom bracket and look at the bb shell and tubes. -- Bob > -----Original Message----- > From: Bob W [mailto:[EMAIL PROTECTED] > Sent: 13 August 2007 22:26 > To: 'Pentax-Discuss Mail List' > Subject: RE: OT - a little late on the bicycle thing... > > > > > I've read good things about the quality of mid'80s Japanese > > lugged steel > > frames. How can I tell if it is rusting on the inside? Just > > take the > > seat post out and look inside? > > > > I don't know - your lbs may be able to help you find out. But > if it's been kept in a dry garage all that time it should be > ok. If it is, you can spray some rust-proofing treatment > inside it to keep it that way. > > -- > Bob > > -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net

