Why aren't sportive' 'bikes popular outside the UK? I recently bought a 'sportive' bike, i.e. very much like a road bike but with a taller head tube to give a slightly more upright, more relaxed, less 'heads-down' riding position, and a triple chainset rather than a compact double. 

I think this is a great bike (I'm not telling you its make or model as I don't want to discuss the pros and cons of this specific bike), but the US-based manufacturer produced it in 2010 only. I happened to meet a UK-based employee of theirs at the weekend who told me although this bike was designed specifically for the UK market, its (worldwide) sales turned out to be too small to justify continued production. This surprises me, as I have the impression that only a small proportion of the (lower-end) road bikes sold are ever used for road racing or time trialling, with more used for fitness and day rides, including the sportive events that give this style its name, and that this style of bike is ideally suited to such uses.

Can anyone explain why such bikes aren't popular outside the UK?
That site's basic definition of sportive boils down to:


more upright riding position
more comfortable for distance riding
longer chainstays, taller head tube
softer forks (though many brands have gone to carbon forks across the board)
yet still with drop handlebars and quality components


And I think nearly every brand in the US has entries in that realm, though they often call them things like "endurance / sport / performance" as compared to "race / competition". Basically it comes down to "comfort geometry not race geometry"; components, materials, and even gearing choices are often similar or identical.   Of course their race models often extend up into exotic carbon frames and top-end component groups, where sport models may only go up to basic carbon frames and mid-level groupos.

Some examples (aluminum frames):


Brand          sport geometry     race geometry
-----          --------------     -------------
Cannondale     Synapse            CAAD 10
Felt           Z series           F series
Giant          Defy               TCR 
Specialized    Secteur            Allez
Trek           ?                  2 series


These are all drop-bar road bikes, but the first column has a little more forgiving ride for long distances, while the last column has racier / faster handling.  But both kinds are raceable if you want (they're not all that far apart).  Both can usually be had with your choice of triple or compact double crank gears; a standard double seems more available in race models.

So 'sportive' bikes are available in the US, just by different names.