from DH (12/05) -
Jim, I wonder a bit about what Scot N. said about Ibis serial numbers.
Not that he ain't the expert, but when he writes, "In general, three
and four digit serial number bikes were all made in our Sebastopol
factory," the info I have (below) seems to at least partially contradict
fact, I have four Ibis road bikes (frames), only one bought new
(the ti one); and here's what's what.
The Spanky I mentioned to you has serial number 5622, and the chainstay
decal says made in Sebastopol. With its stainless stay (stays? only
one is shiny), and its smaller downtube decal, that's a 1997 or
1998 model, I believe.
Ibis Sonoma titanium. I bought this one directly from Ibis in the
fall of 1999, and it was my first Ibis. Not only is its geometry
different than the Spanky mentioned above (both 55.5cm sized c-c,
but other numbers differ, such as top tube length), and the same
as the two below, but it has the big, panel-like downtube decal.
That decal difference seems to me to be one way to tell 1999 and
later from earlier Ibis road bikes. This one has serial number 7046.
But I don't believe the ti frames were made in Sebastopol.
Ibis Spanky. This one has the same geometry as the Sonoma ti, but
the same smaller downtube decal as the first Spanky. Also, if this
has stainless stays, they're painted over. The chainstay decal does
say made in Sebastopol, and the serial number is 6174. I'm not certain
what year this was, but I'd guess 1998...except that your 1998 catalog
shows the same geometry as the 1997 models.
Ibis Sonoma. This one is almost certainly a year 2000 model, since
it's a Sonoma steel (and not a Spanky), since it has seat tube "Ibis"
decals too, and since there's no chainstay decal saying where it
was made. It has a four-digit serial number, 0151, but clearly wasn't
made in Sebastopol.
hope this helps. I send pictures when I can shoot them, and I'd
be glad to regularly communicate about any Ibis stuff.
who also has a fifth Ibis frame which is a Spanky with the large
panel-like downtube decal so it's probably a 1999 model and didn't
mention it above since he'll post it once more on the iBob list
to sell and then put it on eBay