Mark,
If you're looking for tubes with a Presta valve, simply get tubes that would fit 700c x 21. If the rims take Schraeder valves... don't know what to tell you there.
Cheers,
(shoeless) John Barry
Mechanicsburg, PA, USA
> From: Mark Chance <mcjjj1@comcast.net>
\r?\n> Subject: [CR] Speaking of clinchers
\r?\n> To: "CLASSIC RENDEZVOUS" <classicrendezvous@bikelist.org>
\r?\n> Date: Thursday, June 25, 2009, 10:47 PM
\r?\n> Speaking of clinchers
\r?\n>
\r?\n> Speaking of clinchers, where can I find a set of tubes that
\r?\n> will fit my 27x 7/8 Clements? My LBS thought I was out
\r?\n> of my mind when I asked them yesterday. If you know
\r?\n> of good source that stocks tubes the size of spaghetti
\r?\n> noodles, please let me know
\r?\n>
\r?\n> Mark Chance
\r?\n> Houston, TX