SJS still shows stock on the GB Randonneur bars. I ordered a set about 2 years ago from them. However, they are described by SJS as 25.4mm. I have them fitted to a GB stem. Not sure of the diameter of the GB stems but every GB stem that I've ever fussed with has been very tight.
"Original production drop bars, 25.4mm bar diameter, Width: 43cm centre to centre, 45cm overall."
SJS also has the modern grooved/ergo ttt Morphe "Randonneur" bars in 26.0mm with widths from 38 to 46cm out to out. I can't tell from the pic how it would be characterized as a randonneur style bar but C+ seemed to like them. Wouldn't slap them on a vintage bike...
> I bought a couple of pairs of GB Randonneur bars a couple
> of years ago, so I think they weren't exclusively French.
> Jerry Moos
> Houston, TX
> ----- Original Message -----
> From: "Jan Heine" <email@example.com>
> To: <firstname.lastname@example.org>
> Sent: Monday, March 17, 2003 8:38 PM
> Subject: [CR]26.0 mm randonneur bars
> > Nitto makes (made?) 26.0 mm diameter Randonneur
> > handlebars. Ask your shop to order them from Euro-Asia
> > or some distributor like that. They have different
> > models (Nitto, that is), with different reach, width and
> drop. Rivendell used to sell the model that made most
> > sense - a long reach one.
> > Note that many Nitto bars are copies of French bars, but
> > sized smaller (presumably for Japanese hands) - the
> > opposite of what most of us Americans would like.
> > Of course, I agree with Sheldon - shims on bars are no
> > problem. I once saw an Herse that was equipped NOS with
> > Cinelli stem and Philippe 25.0 mm bars. Inside was a
> > nice shim, appears to have been a common combination.
> > Jan Heine, Seattle