Those were Buco handlebars and are sitting on my shelf ready to go on ebay...
I had a few sets of correct bars from the T305s that I collected parts for.... it's nice to be able to use your extra parts that are just sitting on a shelf.
There was no Cobra in the US... it was always called the 500/Five here.
The easiest way to tell if it is a short wheelbase bike is the placement of the muffler cutouts for the rear axle.... this is very noticeable.
Also the short wheelbase bike had straight cut ends on the mufflers like the T305/T20
I have the cycle world test as well at home and the bike that was photographed is the long wheelbase (56.? in) bike and it has the thin grips on it.
The test data shows 52.? wheelbase, but that is not what is in the photos....
They were probably given a few bikes to test... or maybe they just went off a spec sheet that was given to them and didn't bother to measure anything.
Ivan