So, were 650B ever available in sewups? I may be completely mislead, but I thought the classic French 650B's that appears on constructeur bikes were clinchers. Am I wrong? If I am wrong, when did the constructeurs switch to 650B clinchers? What about 30's to 50's 700C constructeur bikes? Were these sewups? I know the classic constructeur bikes almost always had tires wider than 30 mm and sometimes wider than 40 mm. Were sewups made that wide?
Regards,
Jerry Moos
Big Spring, Texas, USA
> From: Dr. Paul B. Williams <castell5@sympatico.ca>
\r?\n> Subject: Re: [CR] Tubulars v Clinchers.....shot at dawn BUT what about LESS COMMON SIZES
\r?\n> To: classicrendezvous@bikelist.org
\r?\n> Date: Saturday, May 30, 2009, 1:40 PM
\r?\n> Okay, while the clincher vs. tubular
\r?\n> stand-off goes on, it is all very well to berate those who
\r?\n> have switched out tubulars/ sew-ups for clincher/ wired-on
\r?\n> rims, but what do you do if sew-ups are no longer available
\r?\n> for certain rim-sizes? I am thinking specifically about the
\r?\n> 26 X 1 1/4" on a large majority of pre-1950ish British bikes
\r?\n> or the 650B French sizes. I haven't seen many sprint rims
\r?\n> for bikes fitted for the former size wheelsets being offered
\r?\n> and if they are where on earth would one find the tyres -
\r?\n> unless, as I asked a while ago, sprint rims on said bikes
\r?\n> were a different size!
\r?\n>
\r?\n> I would love to ride the Carpenter with sew-ups - in fact I
\r?\n> would love to ride the Carpenter with something other than
\r?\n> the Schwalbe knobbies I have right now!!
\r?\n>
\r?\n> Paul Williams,
\r?\n> Ottawa, ON, Canada