Um... this is 2010 data. A lot has changed since the days of horse and buggy.
Doesn't mean the data is bad and no longer valid. It is still valid. The old Conti Supersonic is reportedly faster than the current version.
Do you have data to support that?
Yes for one those are old Supersonics pre-black chilli, they have had their design updated a few times since then. Remember also that is only RR, Those tires in front of those tires all have lips to from tread to casing which is NOT aero. The Supersonic does not.
Here is data circa 2015-2017 from Tom A who IMHO took over unofficially for Al Morrison. Supersonic was number two behind the new Corsa Speed Tubeless which also has a lip. The Supersonic in this test is actually my personal Supersonic. Anecdotally I had been promoting the Supersonics for years, they were just N+1 showing up so fast in my personal testing and I urged Tom A to test one but he didn't have one so I sent him a well worn one.
Here is Tom A's dataset
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